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Results from KPAF web retrieved at 07:17 (Local)

2010Call

2010 June GBT KFPA Call for Proposals The K band Focal Plan Array Receiver (KFPA) was successfully commissioned in March and April 2010. Initial results of these...

r16 - 2016-06-08 - 14:21 by PatrickMurphy

2011Call

2011 February GBT KFPA Call for Proposals The K band Focal Plan Array Receiver (KFPA) was successfully re commissioned in August and September 2010. Results of t...

r10 - 2016-06-08 - 14:21 by PatrickMurphy

2012Call

2012A GBT Call for Proposals KFPA The K band Focal Plan Array Receiver (KFPA) share risk observations were successful in Winter 2010/2011. The KFPA is now av...

NEW - 2011-06-03 - 09:40 by GlenLangston

45Twist

GB Shop Drawings for Construction. * transition 45degree.ipt

r4 - 2007-11-05 - 14:08 by StevenWhite

AllSingleTests

Single Pixel Testing Laboratory * Single Pixel Laboratory Tests: September 04/05, 2008 * LO1 power level requirements on GBT * Lab noise temperature...

NEW - 2009-11-20 - 10:43 by StevenWhite

AndrewsKfpaimages

16: Mapping and Calibration: 2010 April 19 Ran tests of nodding spectra with all beams. Seemed OK. Ran some maps of TMC, Orion and M33, which looked reasonable....

r16 - 2010-06-29 - 13:09 by AndrewBattisti

ArrayMnCSoftwareDesign

Monitor and Control of the K band Focal Plane Array Overview The GBT M C System The GBT monitor and control (M C) system, named Ygor, is a distributed object or...

r12 - 2016-06-08 - 14:21 by PatrickMurphy

ArrayMnCSoftwareIntegration

KFPA M C Software Integration Path to a Common User Backend KFPA M C Manager The creation of a Manager and microcontroller firmware is the first step and handl...

r3 - 2016-06-08 - 14:21 by PatrickMurphy

ArrayMnCSoftwarePrimer

Purpose The purpose of this page is to serve as a primer for discussion about designing a scalable M C software package for the K band FPA receiver. Introduction...

r12 - 2016-06-08 - 14:21 by PatrickMurphy

August10Tests

Receiver Functionality Calibration Values 1 hour Moon Observation Spectral Satability Selected bands, 1 hour/frequency 8 April 201...

NEW - 2010-07-20 - 11:38 by GlenLangston

AxialRatios

KFPA Axial Ratio Tests The KFPA axial ratio is specified to be 1 dB maximum. Axial ratio tests were completed 14 Jan 2009 on the KFPA single beam receiver. A lin...

NEW - 2009-01-15 - 11:15 by RogerNorrod

BandwidthLimitations

Main.StevenWhite 03 Oct 2007 HEMT Amplifier * S parameters and Noise Temperature Plot * K_Band_EVLAamp.pdf Waveguide * Waveguide Loss Equations ...

r4 - 2007-12-19 - 12:23 by MatthewMorgan

BaseLines

Main.BobSimon 03 Nov 2008 TKFPA29SEP08 Ward, Simon Testing the KFPA receiver in the lab Setup: Cold KFPA 1 pixel receiver with 300k waveguide load on feed window ...

r2 - 2008-11-04 - 10:41 by BobSimon

BeamOffsets

KFPA Beam Offsets * KFPA Beam Offset Parameters October 22, 2009 MS Word PDF

r2 - 2009-10-22 - 11:43 by RogerNorrod

BlockDiagram

Main.BobSimon 2010 03 10 * blockDiagram.pdf: blockDiagram.pdf

NEW - 2010-03-10 - 13:06 by BobSimon

BlockDownConverter

Main.StevenWhite 19 Oct 2007 Block Diagram * Integrated Downconverter Module #1 : IDM1_block_diagram.pdf * Integrated Downconverter Module #2 : IDM2_block_d...

r14 - 2016-11-28 - 09:36 by StevenWhite

BoxRotator

Comments Supporting Box Rotation Capabilities Comments Against Box Rotation Capabilities * Most of the effects of box rotation can be accomplished with intel...

r5 - 2007-11-11 - 10:05 by JeffMangum

CirculartoRectangular

GBT Shop Drawings for construction. * transition circulartosquare.ipt

r6 - 2007-11-05 - 14:07 by StevenWhite

CleoChanges

Main.BobSimon 2010 08 25 Changes/Fixes to be made in hardware and software: Misc control screen: Should look like: * CalControl.pdf Cryo LNA control screen:...

r4 - 2010-08-26 - 10:15 by BobSimon

ColdDesign

Main.StevenWhite 07 Jun 2007 2.1.1 Pixel Cryogenics System #8211; This is a small single pixel dewar that will be used to test the first prototype pixel on the ...

NEW - 2007-06-07 - 11:57 by StevenWhite

ColdNoiseCal

Main.StevenWhite 2013 02 27 * KFPA_Noise_Calibration_Requirements1.pdf: KFPA_Noise_Calibration_Requirements1.pdf * KFPA_NoiseCal_CDR_Slides_Page_01.jpg: ...

NEW - 2013-02-27 - 08:45 by StevenWhite

ComponentStatus

* Status011309.xls: Status011309.xls

r7 - 2009-01-14 - 13:36 by BobSimon

ConceptualDesignReview

Conceptual Design Review CDR Final Report: CDR Panel Final Report Response to Final Report: Email to Committee Members Panel Members Name Affiliation ...

r72 - 2016-06-08 - 14:21 by PatrickMurphy

Connectivity

Main.BobSimon 2010 02 02 * connectivity.pdf: connectivity.pdf

NEW - 2010-02-02 - 10:42 by BobSimon

ConstructionPhotos

Dewar Frame Bottom Plate with Transitions Top Plate with Feeds Dewar Cans and Frame Cooled microwave components Full Assembly

r5 - 2010-10-11 - 15:17 by StevenWhite

ContinuumStudies

It should be a goal, if not a spec, to provide reasonable total power continuum performance; I would suggest the quantitative goal that the RMS of 1 second integr...

NEW - 2007-10-03 - 10:03 by BrianMason

CoolDown

Main.BobSimon 2010 01 27 * cooldown_01_07_10.pdf: Eight wraps of Super Insulation added and temperatures sensors moved. No significant difference over prior c...

r3 - 2010-02-02 - 11:06 by BobSimon

CriticalDesignReview

Final Report: kfpa_cdr_finalreport2.pdf: February 11, 2009 Final Response: KFPA Critical Design Review Response.pdf :February 26, 2009. Dates: January 30 and 31...

r105 - 2009-10-19 - 10:54 by CarolynWhite

CryoIsolator

Main.BobSimon 08 Apr 2008 * isolators.pdf: isolators.pdf

NEW - 2008-04-08 - 10:31 by BobSimon

CryogenicsTopics

Thermal Loading Calculations (Updated January 12, 2009) The thermal loads are calculated and shown in the file ThermalLoadTotals7pixel.XLS with the 15K to 300 K a...

r60 - 2010-11-11 - 10:36 by StevenWhite

DiPlexer

Main.StevenWhite 2010 11 04 * diplexer_typical.pdf: diplexer_typical.pdf

NEW - 2010-11-04 - 08:18 by StevenWhite

Documentation

* Pipeline progress review * The pdf version of the Minutes_October_20_2009.pdf * The pdf version of the September 23, 2009_KFPA_Pipeline_conference * T...

r40 - 2009-12-16 - 12:57 by GlenLangston

DrawingFilePage

Rob Taggart is the administrator of drawing numbers for the K band FPA project. A read only drawing log file is available on the network for assigned drawing num...

r2 - 2008-02-28 - 14:13 by StevenWhite

ElectronicDesign

Main.StevenWhite 07 Jun 2007 1.1 Electrical Design and Specs #8211; The overall system architecture must be finalized and specifications written. There are sev...

r2 - 2007-08-27 - 10:48 by StevenWhite

EngPlanning

!Engineering Planning Table of Contents Seven Pixel Tests * Post Commissioning Tests * Commissioning Stability Tests March 26 and April 19, 2010: 800 MHz...

r85 - 2021-11-10 - 08:31 by StevenWhite

ExistingKBandData

Existing GBT K band Data There have been 167 projects that have used the existing K band receiver on the GBT. They are listed here. Of these, 134 have used the ...

NEW - 2008-07-24 - 11:49 by DjPisano

ExternalCommitteeMembers

J. Bally, University of Colorado J. DiFrancesco, HIA, Victoria A. Goodman, Harvard/CfA M. Heyer, University of Massachusetts M. Hollis, NASA/GSFC J. Jackson, Bost...

r3 - 2008-01-07 - 07:54 by StevenWhite

Feed

Feed Comparisons * gbtmemo262.pdf: Feed Comparison Memo...Sri CST modeled Return Loss * S11: 15 to 20 GHz * S11: 18 to 26.5 GHz * S11: 25 to 30 ...

r15 - 2009-06-17 - 14:36 by StevenWhite

FeedConfiguration

Feed Configuration Options Regular hexagon This is the default option. Perturbed hexagon Unlike a regular hexagon, a slightly perturbed hexagonal...

r4 - 2007-11-27 - 11:02 by JayLockman

FrequencyRange

* Is it possible to get the upper frequency limit pushed to 27.5GHz? At 27.478 GHz, there's the ammonia (9,9) line located. It is third lowest ortho ammonia trans...

NEW - 2007-10-09 - 11:22 by JuergenOtt

FsCalibrationPlan

Frequency Switched Pipeline Calibration Plan Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeline documentation ...

r5 - 2013-06-06 - 13:22 by JoeMasters

GainAxialratio

Main.BobSimon 2010 03 05 * gain_axial_ratio.xlsx: gain_axial_ratio.xlsx * readme_gain.pdf: readme_gain.pdf

NEW - 2010-03-05 - 14:36 by BobSimon

GainCompression

KFPA Gain Compression Tests On January 14 15, 2009, gain compression tests were done on the KFPA single beam receiver. The IDM Type II prototype was used. Resul...

NEW - 2009-01-15 - 12:36 by RogerNorrod

GbtvsKfpa

Main.BobSimon 09 Jan 2009 Noise performance comparing the GBT K band receiver and the KFPA receiver with type I downconverter * GBTkband_vs_kfpa.xls: GBTkband_vs...

NEW - 2009-01-09 - 09:41 by BobSimon

HEMTBiasCard

Monitor and Control Hardware Introduction Typical GBT receivers, those with four or fewer pixels, utilize a monitor and control system based on the VLBA Standar...

r45 - 2022-09-09 - 11:59 by GalenWatts

HighResolution

Main.BobSimon 2011 02 07 High resolution pictures of the GBT K Band Focal Plane Array receiver * Dewar open: * Overall: * KFPA Project Man...

NEW - 2011-02-07 - 11:38 by BobSimon

InitProposal

Main.StevenWhite 06 Jun 2007 * Original (April 2007) Internal NRAO Proposals for the frontend, backend and potential Canadian Contributions * Initial (April...

r2 - 2009-10-19 - 10:54 by CarolynWhite

InitialNRAOProposal

Initial (April 2007) Internal NRAO Proposals * Original frontend proposal (PDF version) (word version) * Original backend proposal (PDF version) (word versi...

r2 - 2009-10-19 - 10:54 by CarolynWhite

InstallationPhotos

Preparing to hoist with Ken Ward and Phillip Rittenhouse Photograph by Bob Simon GBT Turret view with Bob Goldizen, Harry Morton and Phillip Rittenhouse ...

r3 - 2010-03-29 - 15:23 by BobSimon

InstantaneousBandwidth

Main.StevenWhite 14 Jun 2007 Al Wotten: "For ammonia studies, IMHO it would be useful to get several (J=K) lines to characterize temperature. To get two para lin...

NEW - 2007-06-14 - 12:58 by StevenWhite

InstrumentDisclosure

A seven feed, dual polarized K band focal plane array receiver is proposed for the Green Bank Telescope. This instrument will enhance the scientific capabilities ...

r16 - 2016-06-08 - 14:21 by PatrickMurphy

InternalWorkingGroup

Observing modes: Jeff Mangum, chair This group will describe the ways in which the array will be used on the telescope to guide considerations of telescope motion...

NEW - 2007-11-19 - 08:06 by StevenWhite

KFPABeamSpacing

KFPA Beam Spacing * K band hexagonal feed spacing in the focal plane and on the sky: * The above figure shows the hexgonal close packed spacing used ...

r6 - 2016-06-23 - 08:48 by StevenWhite

KFPACalibration

Use the total power calibrated data, plus the information from the calibration module to arrive at the data in the units in which they will be imaged (is that alw...

NEW - 2009-07-14 - 17:14 by BobGarwood

KFPACorrelator

Sampling rates and Efficiencies The processing of the sampled data requires a limit on the data rates. The first device in this process is the analog to digital ...

r5 - 2009-10-19 - 10:54 by CarolynWhite

KFPADataCapture

Combines the information from the various M C FITS files into a data stream that the pipeline can be used. At the moment, the online sdfits filler does this task ...

r2 - 2009-07-17 - 13:50 by BobGarwood

KFPADataConversion

This page documents work on converting GBT sdfits file to the format used by the ACSIS gridder. The ACSIS gridder is an application in starlink. Relevant docu...

r7 - 2008-04-16 - 10:40 by BobGarwood

KFPADataEditingFlagging

This component is deferred until later in the pipeline development. Possible flagging schemes and needs should be described here. Main.BobGarwood 2009 07 14

NEW - 2009-07-14 - 16:43 by BobGarwood

KFPADataPipelineDesign

A design for the data pipeline for the prototype GBT K Band Focal Plane Array Introduction See the KFPA wiki for more information on the GBT K Band Focal Plane A...

r27 - 2016-06-08 - 14:21 by PatrickMurphy

KFPADataPipelineDesignFeb2008

A design for the data pipeline for the proposed GBT K Band Focal Plane Array Introduction See the KFPA wiki for more information on the proposed GBT K Band Foca...

r5 - 2016-06-08 - 14:21 by PatrickMurphy

KFPADataPipelineIssues

This wiki page exists so that ongoing pipeline discussion issues can be maintained and commented on in a single place. The current focus is on describing the use ...

r5 - 2009-08-31 - 16:03 by JayLockman

KFPADataPipelineUseCases

Eventually this page will contain the links to the specific use cases that the pipeline will handle. The use cases should be specific enough so that the pipeline ...

NEW - 2009-07-15 - 16:06 by BobGarwood

KFPADataPipelineUseCasesNotes

This is obviously very much a work in progress. Right now it's primarily a note pad where thoughts and questions on the KFPA use cases can be displayed quickly. P...

r4 - 2016-06-08 - 14:21 by PatrickMurphy

KFPADataPipelineWorkspace

Scratch space for thoughts on the KFPA data pipeline and processing issues. I am attempting to turn this into a KFPA data pipeline design document prior to the re...

r8 - 2016-06-08 - 14:21 by PatrickMurphy

KFPADataProcessingBrainstorming

Please feel free to edit this page and add any topics for discussion during this workshop. Eventually these items will be folded into the agenda. Visit the Main...

r6 - 2007-11-28 - 14:13 by BobGarwood

KFPADataVisualization

GBT Data Visualization visually interacting with the ungridded data from the GBT. Requirements Examples * aips /dish relied on the viewer and msplot. See ...

r2 - 2008-05-27 - 10:45 by BobGarwood

KFPAExampleScript

Glen Langston provided the sample script and accompanying procedures attached here. These procedures are written specifically to work with two sets of mapping sc...

r3 - 2016-06-08 - 14:21 by PatrickMurphy

KFPANoiseCal

Main.StevenWhite 2013 02 28 An ongoing issue is the stability of the integrated noise calibration module,ICM. Occasionally the values are not loaded properly, a ...

NEW - 2013-02-28 - 11:29 by StevenWhite

KFPAOphiuchusCase

Frequency Switched KFPA Pipeline Use Case Figure 1: JCMT 850 um infrared image of Ophiucus, showing regions images B, C and D imaged with the GBT by Friesen et a...

r11 - 2016-06-08 - 14:21 by PatrickMurphy

KFPAPipelineCompletionList

This page was created prior to a phone meeting scheduled for 10AM on 11 Jan 2011. Eventually this list will be associated with tracked items on Pivotal Tracker (...

r4 - 2011-01-11 - 07:52 by GlenLangston

KFPAPipelineJune2008Meeting

KFPA Data Analysis Meeting June 23 25, 2008 Purpose and Goals This is the first face to face meeting concerning the KFPA data pipeline and data analysis nee...

r8 - 2009-10-26 - 17:13 by ChrisClark

KFPAPipelineReviewOverview

KFPA Pipeline Overview Pipelines * Imperative for large focal plane arrays (high data rate). * More than just a handy quick look tool. * Defaults should...

NEW - 2010-06-16 - 15:07 by BobGarwood

KFPAReferenceIdentification

$ Frequency Switched : SIG switching is used and the signal and reference spectra are present in each integration. For each integration after doing the total pow...

NEW - 2009-07-14 - 16:56 by BobGarwood

KFPAScal

Source Calibration notes for the Pipeline Currently (August 2009) the standard GBT IDL calibration procedures use a single (scalar) value for the Noise Diode valu...

NEW - 2009-08-26 - 10:28 by GlenLangston

KFPASoftwareQueue

KFPA Software Queue M C TaskPriority Task Info/MR Lead Sponsor, Team Notes MR Status Task Status 1 KFPA Manager GB.Software.Modific...

r74 - 2016-06-08 - 14:21 by PatrickMurphy

KFPASpectrometer

GBT Spectrometer Modes * Observing_Modes_6_19.xls: GBT Spectrometer KFPA Channel Map * Observing_Modes_6_19.pdf: GBT Spectrometer Observing Modes Sampli...

r11 - 2016-06-08 - 14:21 by PatrickMurphy

KFPATmcCase

Position Switched KFPA Pipeline Use Case Figure 1: Image of the distribution of HC7N in the Taurus Molecular Cloud (TMC) The KFPA imaging pipeline has t...

r5 - 2009-10-22 - 14:45 by GlenLangston

KFPATotalPowerCalibration

Makes use of the "cal" switching present in the data. If the CAL value does not switch between T and F an equal number of times, this step does nothing. In the c...

r2 - 2009-10-02 - 15:16 by BobGarwood

KFPAWeather

KFPA Weather models and Opacity calibration. This page describes the KFPA pipeline approach to calibration of the measured and model atmospheric opacity as a func...

NEW - 2009-08-26 - 11:17 by GlenLangston

KFPAWeeklyPipelineMeeting

KFPA Pipeline Weekly Meeting Agenda Next meeting Wednesday, June 16 2010 at 1:00pm in GB137 and CV331. 2010 06 16 1. Final review of agenda for Jun. 17 pipeli...

r10 - 2010-06-14 - 16:00 by JoeMasters

KFPAinstability

Main.StevenWhite 2013 02 28 * Beam 6 right polarizaton: Feb2720136R.pdf: * Beam 2 and 6 Right PolarizationKFPA_B26_R.eps: March 05, 2013: Notice Channel 2...

r2 - 2013-03-05 - 14:02 by StevenWhite

KPAFEngWiki

Nyquist Sampling at K band * \text{Magnification is 3, giving f/D of 3 x 0.6 = 1.9.} * \text{ Nyquist sampling (Voltage) of focal plane FWHM spacing requir...

r12 - 2016-10-14 - 09:32 by StevenWhite

KbandHEMT

Main.StevenWhite 03 Oct 2007 * K Band_amp.gif:

NEW - 2007-10-03 - 10:13 by StevenWhite

KbandStability

Main.StevenWhite 29 Oct 2007 Here's my Roger Norrod promised input on the spectral baseline stability requirements: A handy GBT sensitivity calculator is at: h...

NEW - 2007-10-29 - 14:18 by StevenWhite

KbandTests08Dec28

K band FPGA Single Pixel Test Report for 2008 December 28 These single pixel tests compared the (K1) performance with the current GBT K band receiver (K0). The ob...

r5 - 2009-01-22 - 16:45 by GlenLangston

KbandTests08Oct12

Comparison of the GBT 4 beam and Single Pixel performance Observations were made with the 4 beam K band receiver and with the single pixel receiver in order to di...

r4 - 2008-12-03 - 13:23 by GlenLangston

KevinKfpaImages

Kfpa Commissioning Session Report 29 and 30 Kevin Christiansen systematically reduced KFPA commissioning observations of W51 and produced spectral line plots and ...

r4 - 2011-08-19 - 14:50 by KevinChristiansen

KfpaBalance

KFPA Automatic Balance of IF path Modification Request #? (C04 2009) 1. Introduction The basic observing modes for the KFPA are similar to those already used ...

NEW - 2009-09-15 - 16:01 by GlenLangston

KfpaFirmwareDocs

KFPA Firmware Documentation 1. Intro The GBT M C Manager communicates with the underlying KFPA hardware via the firmware on a Netburner card: http://netburner.co...

r4 - 2013-01-04 - 15:44 by PaulMarganian

KfpaIfLoMr

KFPA LO and IF chain calculation requirements Modification Request #7 (C04 2009) 1. Introduction In order for the observers, engineers and commissioners to e...

r13 - 2016-06-08 - 14:21 by PatrickMurphy

KfpaMapMr

Observation and Calibration Methods for the KFPA Modification Request #9 (C04 2009) 1. Introduction The KFPA Pipeline will monitor the GBT observing status an...

r2 - 2009-06-24 - 14:23 by GlenLangston

KfpaMrTemplate

KFPA LO and IF chain calculation requirements Modification Request #? (C04 2009) 1. Introduction In order for the observers, engineers and commissioners to ef...

NEW - 2009-06-24 - 11:44 by GlenLangston

KfpaObsIndex

KFPA Observation Summary; Organized by Source All the KFPA test observations are public domain, and may be used by any one. To make finding the KFPA observations...

r2 - 2010-12-30 - 16:51 by GlenLangston

KfpaPipeInterface

KFPA Astrid Pipeline Interface Modification Request #8 (C04 2009) 1. Introduction The GBT observer must communicate to the KFPA pipeline some parameters rega...

NEW - 2009-06-24 - 11:39 by GlenLangston

KfpaPipelineHowTo

KFPA Pipeline Development Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeline documentation instead!!! This web...

r5 - 2013-06-06 - 13:22 by JoeMasters

KfpaPipelineReview

KFPA Pipeline Calibration and Imaging Review NRAO will hold an internal review of the KFPA imaging pipeline on Thursday June 17, starting with the science lunch d...

r31 - 2010-06-17 - 13:08 by GlenLangston

KfpaPointingMr

KFPA Astrid Pointing Modes Modification Request #? (C04 2009) 1. Introduction Effective use of the KFPA requires regular peaking on a bright radio source and ...

r2 - 2009-08-19 - 17:17 by GlenLangston

KfpaReduction

KFPA and Pipeline Data Reduction Guide Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeline documentation instea...

r5 - 2013-06-06 - 13:21 by JoeMasters

KfpaSoftwareDocs

KFPA Software Documentation Intro Manager Firmware KfpaFirmwareDocs Main.PaulMarganian 2013 01 03

NEW - 2013-01-03 - 13:19 by PaulMarganian

KfpaSpecMr

KFPA Astrid Spectral Line Modes Modification Request #? (C04 2009) 1. Introduction The basic observing modes for the KFPA are similar to those already used by...

NEW - 2009-08-26 - 12:47 by GlenLangston

KpafProjectMeeting2016June14

KPAF Project Meeting 14 June 2016 * 09:00 noon: GB 137 * 1pm 5pm: GB Basement * for all background material, see the KPAF Home Page Present A...

NEW - 2016-06-12 - 07:28 by RichardPrestage

KpafProjectMeeting2016June28

Project Meeting Open Questions: * Feel out Neal Erickson * Include big name K band observer? * Prepare: * Key science engineering requirements (BW...

NEW - 2016-06-14 - 16:09 by RichardPrestage

KpafProjectMeetings

KPAF Project Meetings * 28 June 2016 * 14 June 2016 Main.RichardPrestage 2016 06 12

r2 - 2016-06-14 - 15:59 by RichardPrestage

LO1A

LO1A: GBT Receiver Room LO used for Doppler tracking Local Oscillators 1 A and 1 B are located in the GBT receiver room and are used for the first down conversio...

NEW - 2009-06-19 - 11:28 by GlenLangston

LO1B

LO1B: GBT Receiver Room LO used for Doppler tracking Local Oscillators 1 A and 1 B are located in the GBT receiver room and are used for the first down conversion...

NEW - 2009-06-19 - 11:30 by GlenLangston

LODesignTopics

Upper LO (24.8 to 34.3 GHz) Problems * This section is intended as a reference page to document and understand the problems with the upper LO design. ...

r37 - 2010-07-21 - 09:37 by StevenWhite

LOSchedulePage

Main.StevenWhite 2010 03 31 date, 20, text,20 select,1,%X%,%Y% " editbutton = "Edit Table" }% Task Description Date Started Date Complete Signed ...

NEW - 2010-03-31 - 08:33 by StevenWhite

LoPowerLevels

Main.BobSimon 01 Oct 2008 *Excel spreadsheet showing LO1 synthesizer power settings vs frequency. This will give correct LO1 drive at the downconverter input....

NEW - 2008-10-01 - 08:44 by BobSimon

MCBTopics

Main.BobSimon 2010 08 25 * CryoAmpSetup.xls: Setup spreadsheet for cryogenic amplifiers * KFPA7MCB.xls: MCB document * Proposed changes to the KFPA CLEO ...

NEW - 2010-08-25 - 10:50 by BobSimon

MPArrayAssembly

Main.StevenWhite 27 Aug 2007 3.3 This task describes the assembling of all components for a seven feed receiver. This includes the mounting and cabling of all i...

NEW - 2007-08-27 - 11:52 by StevenWhite

MPColdDesign

Main.StevenWhite 07 Jun 2007 3.1.1 Array Cryogenics System #8211; This is the cryogenic system for the full array. Ideally it would be designed for a fully pop...

r2 - 2007-08-27 - 11:23 by StevenWhite

MPCommissioning

Main.StevenWhite 27 Aug 2007 This task requires a fully functional multi pixel receiver with complete software packages that is then qualified and released for ob...

NEW - 2007-08-27 - 13:50 by StevenWhite

MPDataPipelineSoftware

Main.StevenWhite 27 Aug 2007 This is the task of providing data analysis software for mapping and calibration. This is not intended to be an optimal data analy...

NEW - 2007-08-27 - 12:24 by StevenWhite

MPObservationsupportSoftware

Main.StevenWhite 27 Aug 2007 This task includes all software necessary to aide in setting up the instrument for all its observational modes, where data is stored ...

NEW - 2007-08-27 - 12:19 by StevenWhite

MPWarmDesign

Main.StevenWhite 07 Jun 2007 3.2.1 IF Modules (Pixels 2 7) #8211; This is the fabrication and testing of IF Modules for pixels 2 7. 3.2.2 Bias, Monitor, and Co...

r2 - 2007-08-27 - 11:37 by StevenWhite

March262010

Stability Tests: April 19, 2010 Commissioning Data: * Spectral Line Mode: 800 MHz, 30 second integrations, 5 minute Scans. These are difference plots between...

r2 - 2010-04-21 - 09:31 by StevenWhite

MechanicalDesign

Main.StevenWhite 07 Jun 2007 1.2 Mechanical Design and Specs #8211; The observatory's experience with ALMA, as well as the experience of other institutions who ...

r2 - 2007-08-27 - 12:04 by StevenWhite

MechanicalDesingTopics

Some open issues related to the mechanical design * For the 7 pixel there are 4 G 10 standoffs per pixel. 61 pixels will need a different arrangement. * A ...

r2 - 2008-02-22 - 11:56 by StevenWhite

MegansKfpaImages

Kfpa Commissioning Session Report 17 Observations configured for larger scale images, to test pipeline processing. Had some setup issues during these tests, wh...

r14 - 2010-06-28 - 16:55 by MeganJones

NoiseSummary010809

Main.BobSimon 09 Jan 2009 * README010709.TXT: README010709.TXT * README010809.TXT: README010809.TXT * kfpasummary010809.xls: kfpasummary010809.xls

NEW - 2009-01-09 - 09:37 by BobSimon

NoiseTempResults

Main.BobSimon 01 Oct 2008 * Results of noise temperature measurements in lab, 9/25/2008 * README92508.TXT: README92508.TXT * noise092508.xls: noise092508.x...

NEW - 2008-10-01 - 09:06 by BobSimon

NoiseTempResultsA

Main.BobSimon 04 Nov 2008 * README.TXT: README.TXT * noise092508.xls: noise092508.xls

NEW - 2008-11-04 - 11:36 by BobSimon

NoiseTempResultsB

Main.BobSimon 01 Oct 2008 * Results of noise temperature measurements in lab, 9/26/2008 * README92608.TXT: README92608.TXT * Meas26Sep08.xls: Meas26Sep08.xls...

r3 - 2008-10-02 - 09:30 by RogerNorrod

NoiseTempResultsC

Main.BobSimon 04 Nov 2008 * README102808.TXT: README102808.TXT * KFPA102808.xls: KFPA102808.xls

NEW - 2008-11-04 - 11:37 by BobSimon

NoiseTempSummary

Main.BobSimon 05 Nov 2008 Single pixel KFPA receiver. This is a summary view of noise temperature testing as done on 9/25, 9/26, and 10/28/2008, as compared to th...

NEW - 2008-11-05 - 13:16 by BobSimon

NoiseTemperature

Main.BobSimon 2010 01 26 * KFPAnoise_wCAL_04_21_10.xls: Combined noise cal data, last update 4/21/2010 * readme_04_21_10.txt: Noise cal data.readme *...

r5 - 2010-08-24 - 08:49 by BobSimon

OMT

EVLA design. Fabricated in Green Bank. Assembled in Socorro by Brent Willoughby. Bob Hayward engineer. November 6, 2007 Machine shop has drawings and work orde...

r5 - 2007-12-04 - 11:11 by StevenWhite

ObserverGuide

K Band Focal Plane Array (KFPA) and Pipeline Observer's Guide Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeli...

r19 - 2013-06-06 - 13:20 by JoeMasters

OperationsResources

Communications Problems * When the KFPA Cleo Manager display are all "1 's", the control software is not communicating with the net burner card and needs to ...

r3 - 2014-01-29 - 13:02 by StevenWhite

OutputRL

Single Pixel Output Waveguide Return Loss Sponsor Response. February 24, 2009. Steven D. White, Program Manger. I have agreed to purchase the isolators and accep...

r4 - 2009-02-24 - 15:59 by MatthewMorgan

PhaseShifter

Sri has Mandrels. Send out for electroforming. ~$1420 each.

NEW - 2007-11-01 - 08:21 by StevenWhite

Pictures

Main.BobSimon 11 Jan 2008 * Receiver room: * GBT turret: * K band Pamtech cryo isolator, picture 01 * K band Pamtech cryo isolator, picture 02: * K band f...

r8 - 2009-01-28 - 16:17 by BobSimon

PipelineNewDirections

New Directions and Requirements for the GBT Pipeline Agenda: * Brief summary of current pipeline (Joe) 10 min * Top priority requirements (All Met) ...

r4 - 2011-04-20 - 08:35 by GlenLangston

PipelineProgress09Dec16

Review of Pipeline Progress: 2009 December 16 Steve, Toney, Bob, Marty, John and Glen reviewed pipeline development status. * Update on Hardware status Steve...

NEW - 2009-12-16 - 13:16 by GlenLangston

PolarizationProperties

* From the point of view of continuum, the feeds should be native circular. With no special provisions other than that (for instance, there is no need for the rec...

r2 - 2007-11-19 - 11:17 by CrystalBrogan

PostCDRResolution

Change Requests (Hardware) The following table is established to track all hardware changes, issue resolution, and other requests. These includes all changes to...

r11 - 2016-06-08 - 14:21 by PatrickMurphy

PostCommissioning

Laboratory Tests Allan Variance * Allan Variance Measurements: Typically knee occurs greater than 50 seconds. Beam 7 R exhibits instability. Be...

NEW - 2010-05-19 - 08:56 by StevenWhite

ProgramManagement

Observations in the K band frequency spectrum (18 26.5 GHz) of extended sources in the spectral line require inordinate amounts of telescope time with a single pi...

r87 - 2016-06-08 - 14:21 by PatrickMurphy

PrototypePipelineSchedule

The Resource estimates are driven by the target milestones for this project. Overall, we'd like this project to lead to a pipeline review. The goal of the pipelin...

r5 - 2010-01-29 - 15:55 by JoeMasters

PsCalibrationPlan

Position Switched Pipeline Calibration Plan Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeline documentation i...

r9 - 2013-06-06 - 13:20 by JoeMasters

RandomComments

Random Comments Put suggestions / ideas here if you cannot think of anywhere else to put them... * I understand that the dewar will be designed to hold 61 pixe...

r5 - 2009-10-19 - 10:54 by CarolynWhite

ReceiverConnectivity

Main.BobSimon 2010 02 02 * conn_3_9_10.pdf: Connectivity from receiver to analog rack Cabling Feb 11, 2010, GW The cabling file shows # Seven Pixel 18 26.5 GH...

r3 - 2010-03-10 - 12:54 by BobSimon

RecommissioningReports

KFPA Re commissioning Test Reports The KFPA was reworked during summer 2010 and restored to the GBT on August 21, 2010. Below we summarize the tests made to confi...

r7 - 2010-11-29 - 09:29 by GlenLangston

SPMonitor

Main.StevenWhite 27 Aug 2007 Monitor and Control for single pixel. This provides the monitor and control functions through a CLEO screen. This software should i...

NEW - 2007-08-27 - 12:10 by StevenWhite

SPReceiverAssembly

Main.StevenWhite 07 Jun 2007 This task includes final assembly and integration of the single pixel demonstration receiver.

NEW - 2007-06-07 - 12:00 by StevenWhite

SPSkyTest

Main.StevenWhite 07 Jun 2007 Once the single pixel receiver and backend is complete, the unit will be tested on the telescope. This task accounts for the work ne...

NEW - 2007-06-07 - 12:01 by StevenWhite

SWPlanning

Software for the K band Focal Plane Array (KFPA) GBT software improvements and extensions are a critical part of the KFPA project, which will enable important new...

r45 - 2016-06-08 - 14:21 by PatrickMurphy

SciPlanning

* External Committee Members * Internal Working Group * 2007 September (.pdf) * 2007 April (.pdf) * Exact frequency coverage of the front end. Is this o...

r33 - 2010-02-09 - 15:38 by ToddHunter

SciencePipelineWorkshopNotes

Science Pipeline Workshop Notes (November 26 28, 2007) Monday, November 26, 2007 Welcome/Introduction Overview of the KFPA project * Program Personnel ...

r11 - 2007-11-28 - 15:16 by AmyShelton

SciencePipelineWorkshopNov2007

GBT K Band Focal Plane Array Science and Data Pipeline Workshop, Nov 26 28, 2007 Introduction This is a workspace to facilitate the organization of the GBT K B...

r28 - 2009-10-19 - 10:54 by CarolynWhite

September28th2007DiscussionMeeting

September 28th 2007 Focal Plane Array Discussion Meeting Overview The GBT is a superb telescope with excellent performance at frequencies up to 50 GHz (wavelengt...

r9 - 2009-10-19 - 10:54 by CarolynWhite

SevenPixelSchedule

Main.StevenWhite 2009 11 20 Schedule date, 20, text,20 select,1,%X%,%Y% " editbutton = "Edit Table" }% Task Description Date Started Date Complete ...

r26 - 2010-08-26 - 15:22 by StevenWhite

SevenPixelTesting

Seven Pixel K band Focal Plane Array Commissioning We present summaries of initial commissioning tests of the KFPA 7 pixel tests in March and April 2010. These te...

r18 - 2010-08-26 - 09:40 by StevenWhite

SinglePixelTesting

First K band Focal Plane Array Pixel Testing The first step in developing the full 61 pixel array is prototyping the first pixel hardware. The development of the ...

r39 - 2016-06-08 - 14:21 by PatrickMurphy

SinglePixelTesting_GBT

NEW - 2008-11-04 - 15:55 by StevenWhite

SinglePixelTesting_Laboratory

A large number of laboratory tests were performed before putting the receiver on the antenna. These include: * Gain curves over frequency band * Noise temp...

r3 - 2016-06-08 - 14:21 by PatrickMurphy

SkyFreq

SkyFreq: Sky Frequency of the center of the observing band For each GBT backend, the observer generally is concerned with placing the frequency of interest in the...

NEW - 2009-06-19 - 11:49 by GlenLangston

SlidingWr42

Main.BobSimon 11 Apr 2008 * slidingwr42.pdf: S21 and S11 plots of sliding WR 42.pdf * Disassembled view. Elastomer fits into grooves in the WR 42 waveguide ...

NEW - 2008-04-11 - 08:58 by BobSimon

SoftwareWbs

Software WBS for KFPA Reference Documentation * Example WBS's from the DSS project: * https://staff.nrao.edu/wiki/bin/view/GB/DssSoftwareWbs (current)...

r6 - 2016-06-08 - 14:21 by PatrickMurphy

Spurs

Main.BobSimon 04 Nov 2008 Date: 10/28/2008, Simon From Langston's GBT observations ,we are trying to understand why Glen reported higher than expected system temp...

r3 - 2008-11-04 - 15:45 by BobSimon

SystemSpecifications

* System Specifications: Word Document * IFsystemLoss.pdf: 28 Aug 2007, Calculates required front end gain * KFPABeamSpacing.pdf: 6 Feb 2008, Table of beam ...

r13 - 2009-04-22 - 16:18 by RogerNorrod

TKfpa08Oct06

First Pixel tests with Feed at offset locations On October 6, 2008 from midnight to 8:00 AM, Steve White, Bob Simon and Glen Langston ran tests of the first pixel...

r4 - 2009-01-29 - 21:34 by GlenLangston

TKfpa08Sep18

Verified Spurious Equations September 30 Verification of spurious in the (T_KFPA_30SEPT08)plots: * ( 1 LO1 2 LO2 LO3 LO4) spectrometer scans. ...

r57 - 2008-09-30 - 14:55 by StevenWhite

ThermalDesign

Thermal Gaps: Two options for thermal gaps are the annular choke and the photonic crystal joint (PCJ). The EVLA annular choke and a PCJ were modeled with the K b...

r49 - 2008-02-22 - 11:56 by StevenWhite

Tkfpa30

KFPA Test TKFPA_30: 2010 September 6 The final observing session for KFPA recommissioning had a number of observing goals: * Check the intra beam calibration b...

r4 - 2010-11-29 - 09:50 by GlenLangston

Tkfpa31To39

KFPA Re commissioning Test Reports The KFPA was completed and put on the antenna for pre observing tests on October 13, 2010. Below we summarize the tests made to...

r5 - 2010-12-01 - 09:58 by GlenLangston

Tkfpa40

KFPA hardware and software checks during "Shared Risk" observations TKFPA_40, December 15, 2010: Calibration check observations of 3C48 and the Moon Performed Da...

r7 - 2011-09-13 - 09:07 by GlenLangston

Tkfpa62

KFPA hardware and software tests TKFPA_75, August 31, 2011: Repeated Spectral line band scans for stability test * Nod observations while telescope stowed du...

r3 - 2011-09-20 - 08:06 by GlenLangston

Tkfpa80

KFPA Calibration and Test Observations, continuued KFPA calibration observations are presented for Autumn 2011. The primary calibration observations were made t...

NEW - 2011-10-31 - 11:55 by GlenLangston

TypeI14Jan09

IF Spectrums IDM Type I * spurs.xls: Spreadsheet with IDM Type I output spectrums. IDM Type II The IDM Type II prototype gain flatness was measured by detect...

r4 - 2009-01-22 - 16:19 by RogerNorrod

UsefulKFPALinks

Useful Old KFPA Links and Documentation * GBT K band Beam Spacing (Receiver Independent) * Actual KFPA Feed and Pointing Offsets * LNA and Receiver Noise...

r2 - 2016-06-12 - 10:34 by RichardPrestage

VidConMay6

Prerequisites * A set of typical array observing modes: Project Scientist. * Expected data rates and volumes/scan lengths: Project Scientist. * A def...

r5 - 2008-05-08 - 10:22 by BobGarwood

W51gaussfitV

Main.KevinChristiansen 2011 08 18

NEW - 2011-08-18 - 13:06 by KevinChristiansen

WarmDesign

Main.StevenWhite 07 Jun 2007 2.2.1 Integrated Downconverter Module (Pixel 1) #8211; The Integrated Downconverter Module will comprise the warm part of the pixel...

r2 - 2007-08-27 - 11:33 by StevenWhite

WaterMaser

Main.StevenWhite 06 Jun 2007

r2 - 2009-10-19 - 10:54 by CarolynWhite

WaveguideWindow

Window Types The window material is chosen from the leak rate measurement results, out gassing measurement results, and electrical characteristics as many other r...

r9 - 2016-06-08 - 14:21 by PatrickMurphy

WebAtom

NRAO Public Wiki's KPAF web

NEW - 2006-01-24 - 01:07 by TWikiContributor

WebChanges

r3 - 2009-10-19 - 10:54 by CarolynWhite

WebCreateNewTopic

NEW - 2009-09-08 - 08:36 by ProjectContributor

WebHome

K band Phased Array Feed This wiki was co opted from the previous KbandFPA project. To find those links, go to the Old Web Home Overview The intent of this web i...

r4 - 2016-06-23 - 08:45 by StevenWhite

WebHomeOld

Green Bank Telescope K band (18 26.5 GHz) Focal Plane Array First Map from KFPA: Orion KFPA typical spectrum of Orion Operations Resources * ...

r109 - 2016-06-11 - 15:17 by RichardPrestage

WebIndex

r4 - 2009-10-19 - 10:54 by CarolynWhite

WebLeftBar

" warn="off"}% * * * * * * * *

r2 - 2005-03-28 - 04:40 by TWikiContributor

WebNotify

* Main.TWikiGuest example #64;your.company __ .WebChangesAlert, ., .TWikiRegistration

r5 - 2005-03-28 - 04:40 by TWikiContributor

WebPreferences

KPAF Web Preferences The following settings are web preferences of the KPAF web. These preferences overwrite the site level preferences in . and , and can...

r15 - 2016-06-08 - 14:18 by PatrickMurphy

WebRss

NRAO Public Wiki's KPAF web /KPAF

r3 - 2005-03-28 - 04:40 by TWikiContributor

WebSearch

r3 - 2009-10-19 - 10:54 by CarolynWhite

WebSearchAdvanced

r2 - 2005-03-28 - 04:40 by TWikiContributor

WebStatistics

Statistics for KPAF Web Month: Topic views: Topic saves: File uploads: Most popular topic views: Top contributors for topic save and uploads: ...

r8 - 2019-05-20 - 11:25 by AdminUser

WebTopicCreator