Project Charter

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 pixel receiver. Focal-plane array instruments improve telescope efficiency with additional sampling of the aperture plane. A seven beam K-band instrument will be developed that improves mapping speed and map calibration for extended molecular regions, and provides a costing model for future focal-plane array projects. The funding of the project is through Lockheed Martin funds which includes a contingency for beginning work on spectrometer development and data transmission, or for funding personnel in case of schedule slippages.

Project Deliverables

• A dual circular polarized seven beam K-band receiver with up to 1.8 GHz of instantaneous bandwidth.
• Software for monitor and control, configuration support, and data analysis.
• A documented design and costing model per pixel for expansion of the instrument.

Project Scope

In three years an instrument for improved spectral line mapping at K-band is delivered. Although the feeds are uncooled, all components preceding and including the HEMT amplifiers are cooled providing low system temperature for efficient mapping. Calibration is by a cooled noise injection module. A tunable downconverter multiplexes two fixed polarizations onto a single channel compatible with the existing GBT IF system and spectrometer. A data analysis package will aid in instrument commissioning and provide methods for generating maps from the collected data.

Outside the scope are:

• A new spectrometer and data transmission system.
• An efficient and extensive data reduction package.
• Increased data storage and archiving capabilities.

Communications Plan

• A monthly meeting with team members.
• Weekly progress at Friday Commissioning Meetings.
• Conceptual Design Review to finalize the design (~1/08).
• Critical Design Review for single pixel results disclosure (~08/08).
• Periodic reports to Users Committee.
• Monthly updates sent to email list.
• NRAO newsletters updates.
• NRAO-GB instrumentation brochures status report.
• Poster presentations or talks at SPIE, or other similar conferences.

Stakeholders

• User Committee
• Science Advisory Committee
• The general users community and news letter recipients.
• Fred Lo, NRAO Director
• Phil Jewel, NRAO Associate Director
• Karen O'Neil, GB Site Director
• Jay Lockman, Project Scientist
• Glen Langston, Scientist
• Steve White, Project Manager
• Matt Morgan, Project Engineer
• Eric Bryerton, Engineer
• Kamaljeet Saini, Engineer
• Roger Norrod, Engineer
• Bob Simon, Engineer
• Gary Anderson, Engineer
• Sivasankaran Srikanth, Engineer
• Dennis Egan, Engineer

Project Charter Approval

• Approved by PTCS Team Members
  • Steve White
  • Jay Lockman
  • Matt Morgan
  • Eric Bryerton
  • Kamaljeet Saini
  • Sivasankaran Srikanth
  • Roger Norrod
  • Bob Simon
  • Gary Anderson
  • Dennis Egan

• Approved by GBT Program Management
  • Karen O'Neil
  • Richard Prestage

Symbols:

• Use %X% not approve (will display )
• Use %Y% approve (will display )

Costing and Schedule Information

2009AugustJDEcost.pdf Details of Labor Cost as of August 2009.

LM050expenditures2009_Cum.pdf Details of Parts Cost as of August 2009.

LM050expenditures2009.xls Details of expenditures as of March 2009.

Year 1 Effort Requests details responsibilities and efforts for the first year.

Year 2 Effort Requests details responsibilities and efforts for the second year.

Year 3 Effort Requests details responsibilities and efforts for the third year.

The Work Breakdown Structure for the project.

This networkdiagram is a diagram for development and construction, which details the interrelations.

A MS Project KFPAGanttupdateJuly2009.mpp: July 2009 update.

Estimated costs for a seven feed K band focal plane array: CostEstimate7feed.pdf

MS Excel file containing the tables for both labor estimates and cost estimates:Excel File

Project Milestones

Target Date	Deliverable	Complete	Lead
01/15/08	System Design Complete with Conceptual Design Review acceptance.
08/13/08	M&C Hardware Module with support software complete.
08/22/08	Single Pixel Construction Complete
08/31/08	Single Pixel Receiver Laboratory Characterization and Measurement.
10/30/08	Single Pixel Receiver Telescope Commissioning Complete
02/06/09	Critical Design Review Acceptance.
08/01/09	Monitor and Control Hardware Delivered.
08/15/09	Noise Module Delivered.
09/01/09	Monitor and Control Hardware Delivered.
09/07/09	Monitor and Control Software Tested with Hardware.
09/07/09	Integrated Down Converter Module Delivered.
10/13/09	Observing Support Status MR Status		Mark,Patrick,Steve,Glen
11/13/09	Multi-pixel Construction complete.		Bob Simon
01/25/10	System Integrate & LAB Test complete(without doubler).		Bob Simon
03/16/10	System Integrate & LAB Test complete(with doubler).		Bob Simon
03/31/10	Telescope Engineering Test Complete		Steve, Bob, Glen
11/08/10	Commissioning complete.		Glen

Seven Pixel Schedule

Pipeline Specific Milestones

Target Date	Deliverable	Document/Link	Lead
09-11-18	Weather-based calibration scalars to SDFITS output (tau-zenith and T-atm) document	MR-23C509	Bob
09-11-18	Rest frequencies to GO FITS file to be used by SDFITS	MR-1Q110	Bob
09-12-01	Tracking the RA, Dec of the selected beam in multi-beam feed systems	MR-3C608	Bob
09-12-15	Weather-based calibration scalars to SDFITS output (tau-zenith and Tatm) complete	MR-23C509	Bob
09-11-25	AIPS imaging callable from IDL document	MR-?	Glen
09-12-15	Define image cube output frequency definition (interpolation etc)	MR-?	Jay
10-01-15	AIPS imaging callable from IDL complete	MR-?	Bob
10-01-15	Prototype pipeline implemented		Bob/Joe
10-01-15	Scal/vector calibration methods		Ron/Frank
10-01-15	Scal/vector calibration use documentation		Glen
10-03-01	Pipeline Prototype Internal Review		Glen
10-03-15	Full Pipeline Development Plan Circulated		Glen
10-05-15	Pipeline v1.0 (python, with some real-time features) delivered		Bob/Joe
10-08-15	Pipeline external review		Glen