Date | SDM File Name | Band | Nrow | Sdir | VDSP(SS/RR) | PTX(dBm) | Focus(mm) | RMS(A/P) | Quality | Comment | Observer |
---|---|---|---|---|---|---|---|---|---|---|---|
2007/05/21 |
Holoxf42.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-2.0 |
2.38e(-3)/0.867 |
good |
Rx cabin overheating (HVAC failure). Wind gusting to 20 MPH. Tamb = 22C. The AEC max velocity and acceleration for are set to the default (600,1200) and (300,800). Outer edge has excessive residual (for unknown reasons). RMS ~ 20 micron. |
DTE |
2007/05/21 |
Holoxf66.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
2.28e(-3)/0.315 |
good |
Rx cabin overheating (HVAC failure). Outer edge has excessive residual (for unknown reasons). RMS ~ 22 micron. |
DTE |
2007/05/22 |
Holoxf9d.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.31e(-3)/0.432 |
good |
Rx cabin temp now back to normal. New tower position used. Wind at 22 MPH. Map scanning speed reduced from the original 300"/s down to 150"/s. This map lasted 2 hours because of the slower speed. |
DTE |
2007/05/22 |
Holoxfb6.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.168e(-3)/0.200 |
good |
Map scanning speed reduced from the original 300"/s down to 150"/s. This map lasted 2 hours because of the slower speed. Wind ~ 20mph steady, temperature 20.6 C. |
DTE |
2007/05/22 |
Holoxfcd.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
0.992e(-3)/0.150 |
good |
Slow-speed map. |
DTE |
2007/05/23 |
Holoxfee.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.322e(-3)/0.589 |
good |
Slow-speed map. |
DTE |
2007/05/23 |
Holox100c.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
0.890e(-3)/0.102 |
good |
Slow-speed map. |
DTE |
2007/05/23 |
Holox102a.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.853e(-3)/0.1424 |
good |
|
DTE |
2007/05/23 |
Holox1036.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.384e(-3)/0.232 |
good |
Slow-speed map. |
DTE |
2007/05/24 |
Holox1096.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.976e(-3)/0.298 |
good |
Slow-speed map. Wind 10 mph gusting to 20 mph. Temp 21.4 C. |
DTE |
2007/05/24 |
Holox10b4.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.543e(-3)/0.215 |
good |
Slow-speed map. Wind 10 mph, Temp 20.3 C. |
DTE |
2007/05/24 |
Holox10d6.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.151e(-3)/0.281 |
good |
Slow-speed map. Wind 15 mph, fairly steady. Temp 18.2 C. |
DTE |
2007/05/24 |
Holox10f5.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.528e(-3)/0.226 |
good |
Slow-speed map. Wind 10 mph very steady, and temp 16.6C. |
DTE |
2007/05/24 |
Holox1117.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
2.585e(-3)/0.498 |
good |
Slow-speed map. Wind <5mph. |
DTE |
2007/05/24 |
Holox1136.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
3.318e(-3)/0.900 |
bad |
Poor phase stability. Wind 2 mph. |
DTE |
2007/05/24 |
Holox114b.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
6.6561e(-3)/0.633 |
good |
Slow-speed map. Wind 4 mph. |
DTE |
2007/05/24 |
Holox114f.hpb |
104 |
180 |
AZ |
12.0.12.0 |
+10 |
-3.5 |
4.817e(-3)/0.428 |
good |
Slow-speed map. Wind 2 mph Partly cloudy during this map. |
DTE |
2007/05/25 |
Holox69.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.195e(-3)/0.328 |
good |
Wind 2 mph, Temp 16.2 C. |
DTE |
2007/05/25 |
Holox148.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.693e(-3)/0.4132 |
good |
Wind 6 mph, Temp 11 C. |
DTE |
2007/05/25 |
Holox15f.hpb |
104 |
180 |
EL |
12.0/12.0 |
+10 |
-3.5 |
1.371e(-3)/0.4277 |
good |
Wind 6 mph, Temp 11.1 C. |
DTE |
2007/05/26 |
Holox193.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.476e(-3)/0.6404 |
good |
Wind 13 mph, Temp 15.2 C. |
DTE |
2007/05/26 |
Holox1ab.hpb |
104 |
180 |
EL |
12.0/12.0 |
+10 |
-3.5 |
1.929e(-3)/1.150 |
good |
Wind 7 mph, Temp 18.8 C. Somewhat poorer residual phase than typical, but an ok map nonetheless. |
DTE |
2007/05/26 |
Holox1c0.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
3.744e(-3)/1.670 |
bad |
Wind at start 4 mph Temp 20.3 C. At subscan 75-80, ~18:25 UTC, wind gusts up to 56 mph!! Very short-lived blast of wind. By subscan ~140, 18:50 UTC, wind steady down at ~10 mph. Excessive phase residual (due to wind?). Resultant RMS a bit high. |
DTE |
2007/05/26 |
Holox1c3.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.548e(-3)/0.442 |
good |
Wind at start 9 mph, Temp 20.3 C. |
DTE |
2007/05/26 |
Holox1ec.hpb |
104 |
180 |
EL |
12.0/12.0 |
+10 |
-3.5 |
2.005e(-3)/0.488 |
bad |
Wind 11 - 13 mph, Temp 21.9. Total power stability poor, which apparently lead to less-than-optical calibration. This map only slightly "bad". |
DTE |
2007/05/26 |
Holox209.hpb |
79 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
5.535e(-6)/0.445 |
bad |
79 GHz map but with 104 GHz feed installed. Tower position set to 154.592 degs 7.9725 degs. SB "Holography 78.92 GHz". Wind 17 mph, Temp 20.5 C. |
DTE |
2007/05/26 |
Holox220.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
7.017e(-3)/0.611 |
good |
Wind varying from 8 mph to 20 mph. Temp 20.5 C. Amplitude stability poorer than usual. About 2/3 way through map nominal amplitude drop. |
DTE |
2007/05/26 |
Holox239.hpb |
104 |
180 |
EL |
12.0/12.0 |
+10 |
-3.5 |
1.487e(-3)/0.517 |
good |
Wind 10 mph, Temp 17.5 C. |
DTE |
2007/05/27 |
Holox25a.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.096e(-3)/0.461 |
good |
Wind 9 mph, Temp 20.5 C. |
DTE |
2007/05/27 |
Holox271.hpb |
104 |
180 |
EL |
12.0/12.0 |
+10 |
-3.5 |
1.021e(-3)/0.299 |
good |
Wind 12mph Temp 21.5 C. |
DTE |
2007/05/30 |
Holox12147.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+10 |
-3.5 |
1.123e(-3)/0.511 |
good |
Taken after software changes (upgrades?). For unknown reasons, absorber around prime focus not in-place. Actually looks ok under the circumstances. Ringing a bit worse than usual around outer edge (due to missing absorber?). |
DTE |
2007/05/30 |
Holox1214d.hpb |
104 |
180 |
EL |
12.0/12.0 |
+10 |
-3.5 |
1.890e(-3)/0.318 |
good |
Same as above. Last map made before shipping to Chile. |
DTE |
Date | SDM File Name | Band | Nrow | Sdir | VDSP(SS/RR) | PTX(dBm) | Focus(mm) | RMS(A/P) | Quality | Comment | Observer |
---|---|---|---|---|---|---|---|---|---|---|---|
2007/01/02 |
Holo9a5.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
2.56e(-3)/0.329 |
good |
Absorber removed from reference side of Rx. Ripples worse. |
DTE |
2007/01/02 |
Holo9b8.hpb |
104 |
180 |
EL |
11.0/12.0 |
+13 |
-2.0 |
1.27e(-3)/0.262 |
good |
Same as 9a5 but vertically scanned. Ripples about same as 9a5. |
DTE |
2007/01/02 |
Holo9cb.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
2.09e(-3)/0.271 |
good |
Eccosorb around Rx reference feed box re-installed just before this map. Ripples |
DTE |
2007/01/02 |
Holo9de.hpb |
104 |
180 |
EL |
12.0/12.0 |
+13 |
-2.0 |
1.31e(-3)/0.204 |
good |
Same as 9cb, but vertically scanned. Ripples, but perhaps not as bad??? |
DTE |
2007/01/02 |
Holoa1d.hpb |
104 |
360 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
??? |
bad |
??? Screwed-up? Cannot export. Archive software problem? Bug in SDM writer. NO GOOD. |
DTE |
2007/01/03 |
Holoa5a.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
8.14e(-3)/0.420 |
bad |
IMPORTANT! This map was obtained after adding an additional piece of ecosorb around the "step" in the signal feed mount area of the Rx. The outer rim of this absorber has a triangular pattern to attempt to break-up a suspected knife-edge reflection. Marginal phase stability. Amplitude stability much worse than usual. |
DTE |
2007/01/03 |
Hoload7.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
??? |
bad |
SDM-to-hpb conversion failed. |
DTE |
2007/01/03 |
Holoaff.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
2.09e(-3)/0.395 |
bad |
Marginal phase stability. Ripples worse. Significant emission beyond edge of reflector (reflections?). |
DTE |
2007/01/03 |
Holob12.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
2.00e(-3)/0.434 |
bad |
Marginal phase stability. Ripples worse. Significant emission beyond edge of reflector (reflections?). |
DTE |
2007/01/03 |
Holob25.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
4.32e(-2)/2.240 |
bad |
Very poor amplitude and phase stability. Amplitude/phase jump 2/3 way through map. Significant emission beyond edge of reflector (reflections?). |
DTE |
2007/01/03 |
Holob38.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
2.324e(-3)/0.504 |
bad |
Very poor amplitude and phase stability. Amplitude/phase drift throughout map. Significant emission beyond edge of reflector (reflections?). |
DTE |
2007/01/04 |
Holob4d.sdm |
104 |
180 |
AZ |
11.5/11.5 |
+13 |
-2.0 |
1.55e(-3)/0.381 |
bad |
Reasonably good phase stability. Still some amplitude signal beyond edge of reflector, though not as bad as before. Ripples still bad. |
DTE |
2007/01/04 |
Holob60.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
2.09e(-3)/0.322 |
bad |
NOTE: Sawtooth absorber around "step" in Rx signal feed mounting plate removed. Reasonably good phase stability. Still some amplitude signal beyond edge of reflector. Ripples still bad. |
DTE |
2007/01/04 |
Holob73.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
1.24e(-3)/0.316 |
bad |
Reasonably good phase stability. A lot of amplitude signal beyond edge of reflector. Ripples still bad. Poorest map this week. |
DTE |
2007/01/04 |
Holob86.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
2.34e(-3)/0.345 |
bad |
Reasonably good phase stability. Some amplitude signal beyond edge of reflector. Ripples still bad. |
DTE |
2007/01/04 |
Holob99.sdm |
104 |
360 |
AZ |
11.5/12.0 |
+13 |
-2.0 |
??? |
bad |
Attempt to try a large map again fails. Archive error still. NO GOOD. |
DTE |
2007/01/05 |
Holobc2.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
1.87e(-3)/0.584 |
good |
Marginal phase stability. Ripples still bad. |
DTE |
2007/01/05 |
Holobd5.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
1.96e(-3)/1.03 |
bad |
Poor phase stability. Ripples still bad. |
DTE |
2007/01/09 |
Holoc13.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
3.32e(-3)/0.692 |
bad |
Poor phase stability. Ripples still present. |
DTE |
2007/01/09 |
Holoc26.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
1.44e(-3)/0.402 |
good |
Transmitter repointed to point it 1 degree off-axis (to try to minimize reflections; wanted 2 degrees). Marginal phase stability. Still ripples. |
DTE |
2007/01/09 |
Holoc39.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
2.32e(-3)/0.302 |
good |
Still ripples. |
DTE |
2007/01/10 |
Holoc4e.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
1.70e(-3)/0.426 |
good |
Marginal phase stability. Still ripples. |
DTE |
2007/01/10 |
Holoc61.sdm |
104 |
180 |
AZ |
12.2/12.2 |
+13 |
-2.0 |
2.50e(-3)/0.485 |
good |
Marginal phase stability. Still ripples. |
DTE |
2007/01/10 |
Holoc74.sdm |
104 |
180 |
EL |
11.2/11.2 |
+13 |
-2.0 |
1.49e(-3)/0.535 |
good |
Marginal phase stability. Still ripples. Two changed made for this map: (1) Absorber over front to Tx feed has been angled by about 5 degrees upwards. This should be enough to put any reflection coming from the ALMA antenna, reflected back off the front surface of this absorber, to be reflected about 10 degrees away from the ALMA antenna. (2) Pointing of the Tx has been realigned to maximize the power into the holography receiver. This increased the received power by about 16% or 0.67 dB. This confirms that Jack's attempt to change the tx pointing to the -3 dB point, which had been the intention, didn't work out. I suspect that the Tx antenna may have started off, say, -1 degree away from optimum, and Jack changed it as requested by +2.3 degrees, but it then ended up at about +1.3 degrees from the maximum, not far enough for the test I had in mind. |
DTE |
2007/01/10 |
Holoc87.sdm |
104 |
180 |
AZ |
11.9/11.9 |
+13 |
-2.0 |
1.15e(-3)/0.320 |
good |
Good. Still ripples |
DTE |
2007/01/11 |
Holoc9a.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
1.80e(-3)/0.449 |
good |
Good. Still ripples. Note that the outer absorber sheet at the prime focus, in the bottom left quadrant if you stand in front of the antenna looking at the surface, was flapping in the breeze during these measurements. |
DTE |
2007/01/12 |
Holocaf.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
6.03e(-3)/2.520 |
bad |
Bad. Wind gusting to 16 m/s. Very poor amplitude and phase stability. Lots of emission beyond edge of reflector. Bad ripples. |
DTE |
2007/01/12 |
Holocc2.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
4.53e(-3)/1.940 |
bad |
Bad. Wind gusting to 16 m/s. Very poor amplitude and phase stability. Bad ripples. |
DTE |
2007/01/12 |
Holocd5.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
2.01e(-3)/1.840 |
bad |
Bad. Wind gusting to 11 m/s. Very poor amplitude and phase stability. Bad ripples. |
DTE |
2007/01/13 |
Holoce8.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
2.48e(-3)/1.260 |
bad |
Very poor phase stability. Absorber near prime focus coming loose and Rx reference feed absorber fallen off. Wind 9 to 14 m/s. |
DTE |
2007/01/13 |
Holod0e.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
7.93e(-4)/0.527 |
bad |
Several changes: (1) A piece of absorber has been put in front of the SIGNAL receiver feed. The phase response of this is unknown, so the absolute structure measured on the surface from this map will be meaningless. However, it does seem have significantly reduced the 1.25 Hz modulation on the reference signal, and the main signal seems much more stable. This could be because (a) it has reduced the reflection of the transmitter back from the main signal feed back to the tower, or (b) because it has reduced the amount of LO power being radiated out of the main signal feed. More likely, Murphy is busy and it's just the wind direction or the phase of the moon. This is just an experiment. (2) The flapping absorber around the main sig receiver has been tied down. It is fixed in place more firmly. (3) A new sheet of flat absorber has been installed around the reference receiver feed. This is a single flat sheet of thicker (1-inch?) absorber somewhat larger in extent than the receiver width, glued to the flat front face of the receiver, behind the reference horn. |
DTE |
2007/01/17 |
Holod23.sdm |
104 |
180 |
AZ |
5.8/8.0 |
+13 |
-2.0 |
1.23e(-3)/0.415 |
bad |
Wind low now (3.5 m/s; gusting to 6 m/s). Absorber still in front of Rx signal feed feed. Before this map, a slanted copper plate in front of the holo tx was installed. Slant angle about 10 degrees, redirecting incoming radiation up to the sky. There is a hole in this copper plate matching the outer ring of the holography antenna. The copper plate is put on top of the absorber layer that was already in place, and which still covers the lens/horn antenna. The theory is that we were seeing spurious radiation, LO or whatever, being scattered back from the absorber sheet over the transmitter. The copper sheet should be better, in that it won't scatter, it'll reflect any unwanted radiation on to the sky. Also added extra absorber on the tower, in particular trying to eliminate any "corner-cube" type of reflection. The trace in Labview on or besides boresight was excellent after this plate was put in place - any 1.25 Hz ripple is no more than 0.5% peak to peak in either reference or main sig receiver, and comparable with the natural noise level. Never seen it better. HOWEVER, the improvement could still be because of the relatively low wind at the moment. Expect this map to have excellent calibration, but to have horrible aperture phase and amplitude, just like yesterday's last map. The absorber in front of the prime focus holo feed is still there. Marginal phase stability. Ripples. |
DTE |
2007/01/17 |
Holod36.sdm |
104 |
180 |
AZ |
13.3/12.2 |
+13 |
-2.0 |
1.86e(-3)/0.177 |
good |
Wind 4 m/s, gusting to 5 m/s. Before this map absorber in front of the main holo rx feed was removed. So, this should be a valid map. Copper plate still in front of the tx (proposing to leave that there permanently). Very good. Minimal ripples. |
DTE |
2007/01/17 |
Holod49.sdm |
104 |
180 |
AZ |
13.3/13.0 |
+13 |
-2.0 |
3.52e(-3)/0.529 |
good |
Wind 4 m/s gusting to 5 m/s. Same configuration as for d36. Marginal amplitude and phase stability. Amplitude and phase jump half-way through map. Map not bad nonetheless. |
DTE |
2007/01/17 |
Holod5c.sdm |
104 |
180 |
AZ |
11.5/11.1 |
+13 |
-2.0 |
1.88e(-3)/0.533 |
bad |
Wind 4 m/s gusting to 6 m/s. Same configuration as for d36 and d49. Marginal phase stability. Emission beyond edges of reflector. Some ripples. |
DTE |
2007/01/17 |
Holod6f.sdm |
104 |
180 |
AZ |
11.8/11.2 |
+13 |
-2.0 |
1.02e(-3)/0.074 |
good |
Wind 3 m/s gusting to 4 m/s. Same configuration as for d36, d49, d5c. Very good amplitude and phase stability. Map pretty good, but still with some rippling. |
DTE |
2007/01/18 |
Holod82.sdm |
104 |
180 |
AZ |
12.2/13.1 |
+13 |
-2.0 |
|
unknown |
COULD NOT EXTRACT FROM ARCHIVE. Wind 1.5 m/s; 2 m/s gust. |
DTE |
2007/01/18 |
Holod83.sdm |
104 |
180 |
AZ |
12.2/12.8 |
+13 |
-2.0 |
|
unknown |
COULD NOT EXTRACT FROM ARCHIVE. Wind 3 m/s; 4 m/s gust. Experimental metal plate installed behind the Rx signal feed. |
DTE |
2007/01/18 |
Holod84.sdm |
104 |
180 |
AZ |
13.1/12.1 |
+13 |
-2.0 |
1.44e(-3)/0.297 |
good |
Wind 3.5 m/s; 4.5 m/s gust. Removed the circular 35-cm diameter metal plate behind the prime focus feed. Also removed the nice flat layer of absorber that was still behind the metal plate, which we put there some time ago to replace the old absorber with the cuts and gaps in it. Then glued a fresh flat disk of absorber (35 cm diameter) to the plate just removed, and put that plate+absorber back behind the Rx signal feed. The end of the feed is now about 1 cm in front of the absorber. The end of the feed is 1.5 cm in front of the absorber, so the metal plate has now pushed the absorber sheet about 0.5 cm further out. Good amplitude and phase stability. Ripples still present. |
DTE |
2007/01/18 |
Holod97.sdm |
104 |
180 |
AZ |
13.3/12.6 |
+13 |
-2.0 |
1.50e(-3)/0.324 |
good |
Wind 3.5 m/s; 4.5 m/s gust. Same Rx signal feed configuration as for d84. Good amplitude and phase stability. Ripples still present. Some emission beyond reflector. |
DTE |
2007/01/19 |
Holodaa.sdm |
104 |
180 |
AZ |
12.2/13.1 |
+13 |
-2.0 |
8.20e(-4)/0.200 |
good |
Wind 3 m/s; gust 4 m/s. Very cold (-3 C). Same Rx signal feed configuration as d97. Some of the best amplitude and phase stability I have ever seen in ATF holography. Still some ripples. |
DTE |
2007/01/19 |
Holodbd.sdm |
104 |
180 |
AZ |
12.2/13.1 |
+13 |
-2.0 |
5.05e(-4)/0.173 |
good |
Wind 3 m/s; gust 4 m/s. Very cold (-3 C). Starting to snow a little bit. Some small amount of snow collected on reflector. Same Rx signal feed configuration as d97. Some of the best amplitude and phase stability I have ever seen in ATF holography. Still some ripples. |
DTE |
2007/01/19 |
Holodd0.sdm |
104 |
180 |
AZ |
12.1/12.7 |
+13 |
-2.0 |
1.56e(-3)/0.342 |
good |
Wind 4 m/s; gust 5 m/s. Very cold (-3 C). Snow collected on reflector previously gone. Same Rx signal feed configuration as d97. Some of the best amplitude and phase stability I have ever seen in ATF holography. Still some ripples. Some emission beyond reflector. |
DTE |
2007/01/19 |
Holode3.sdm |
104 |
180 |
AZ |
12.7/12.0 |
+13 |
-2.0 |
8.58e(-4)/0.323 |
good |
Wind 4 m/s; gust 5.5 m/s. Very cold (+1 C). Surface clear and dry. Same Rx signal feed configuration as d97. Some of the best amplitude and phase stability I have ever seen in ATF holography. Still some small ripples. |
DTE |
2007/01/19 |
Holodf6.sdm |
104 |
180 |
EL |
12.6/11.8 |
+13 |
-2.0 |
1.124e(-3)/0.213 |
good |
Wind 4.5 m/s; gust 6 m/s. Cold (+2 C). Surface clear and dry. Same Rx signal feed configuration as d97. Some of the best amplitude and phase stability I have ever seen in ATF holography. Few if any ripples. Maybe the best map we have taken during Winter 2006/2007. |
DTE |
2007/01/19 |
Holoe09.sdm |
104 |
180 |
EL |
13.0/12.6 |
+13 |
-2.0 |
1.79e(-3)/0.669 |
good |
Wind 5 m/s; gust 6 m/s. Cold (+2 C). Surface clear and dry. Same Rx signal feed configuration as d97. Not great phase stability. Few if any ripples. Pretty good map considering the less than marginal phase stability. |
DTE |
2007/01/19 |
Holoe1c.sdm |
104 |
180 |
AZ |
13.3/12.7 |
+13 |
-2.0 |
1.52e(-3)/0.671 |
good |
Wind 5 m/s; gust 8 m/s. Cold (+0 C). Some moisture on 1 or 2 of the bottom panels at start of map, but clear at end. Same Rx signal feed configuration as d97. Not great phase stability. Some ripples. Pretty good map considering the less than marginal phase stability. |
DTE |
2007/01/19 |
Holoe2f.sdm |
104 |
180 |
AZ |
11.9/12.8 |
+13 |
-2.0 |
1.36e(-3)/0.335 |
good |
Wind 5 m/s; gust 8 m/s. Cold (+0 C). Reflector surface clear and dry. Same Rx signal feed configuration as d97. Not great phase stability. Some ripples. Good map. |
DTE |
Date | SDM File Name | Band | Nrow | Sdir | VDSP(SS/RR) | PTX(dBm) | Focus(mm) | RMS(A/P) | Quality | Comment | Observer |
---|---|---|---|---|---|---|---|---|---|---|---|
2006/12/01 |
Holo3ff01.hpb |
104 |
180 |
EL |
12.0/12.0 |
+13 |
-2.0 |
2.22e(-3)/0.190 |
good |
Vertically-scanned version of 3fc72. Absorber still covering Tx feed and panels still offset. Ripples and asymmetry. |
JGM |
2006/12/01 |
Holo3ff02.hpb |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
4.33e(-3)/0.629 |
good |
Same as 3ff01 but scanned horizontally. Ripples and asymmetry. |
JGM |
2006/12/01 |
Holo0401a1.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
3.29e(-3)/0.385 |
good |
Removed offsetset adjustment of panels 7-63 and 11-64 (i.e. pushed them back down 100 micron). Tx feed still covered with absorber. Ripples. |
JGM |
2006/12/17 |
Holo074e0.sdm |
104 |
180 |
AZ |
13.0/13.0 |
+13 |
-2.0 |
1.95e(-3)/0.421 |
good |
First map since ACS6.0 upgrade. High winds (gusts to 55 MPH). Using new holography SB with resolution parameter set to 6.667cm (which is clearly wrong). Also first map since extra eccosorb installed on holography tower. Ripples still present with similar amplitude. Apparently holography tower eccosorb had no affect on ripple pattern. Note that Tx feed still covered with absorber. NOTE: periodic every-other-panel-holes on boundary between rings 3 and 4 due to photogrammetry patches. |
DTE |
2006/12/18 |
Holo07640.sdm |
104 |
180 |
AZ |
13.0/13.0 |
+13 |
-2.0 |
2.22e(-3)/1.020 |
bad |
Poor phase stability (poor weather?). Using new holography SB with resolution parameter set to 6.667cm (which is clearly wrong). Made with extra eccosorb installed on holography tower. Ripples still present with similar amplitude. Apparently holography tower eccosorb had no affect on ripple pattern. Note that Tx feed still covered with absorber. NOTE: periodic every-other-panel-holes on boundary between rings 3 and 4 due to photogrammetry patches. |
DTE |
2006/12/18 |
Holo07930.sdm |
104 |
180 |
AZ |
13.0/13.0 |
+13 |
-2.0 |
3.05e(-3)/0.793 |
bad |
Poor phase stability (poor weather?). Using new holography SB with resolution parameter set to 6.667cm (which is clearly wrong). Made with extra eccosorb installed on holography tower and with improved eccosorb installed at signal-feed region. Ripple structure much better, with pattern eliminated from amplitude map, but still present at a lower level in phase map. Better absorber at signal feed helped, but holography tower eccosorb did not. Note that Tx feed still covered with absorber. NOTE: periodic every-other-panel-holes on boundary between rings 3 and 4 due to photogrammetry patches. |
DTE |
2006/12/18 |
Holo7a70.sdm |
104 |
180 |
AZ |
13.0/13.0 |
+13 |
-2.0 |
1.23e(-3)/0.201 |
good |
Pretty good phase stability (considering iffy weather). Using new holography SB with resolution parameter set to 6.667cm (which is clearly wrong). Made with extra eccosorb installed on holography tower and with improved eccosorb cover over signal feed region. Note that Tx feed still covered with absorber. NOTE: periodic every-other-panel-holes on boundary between rings 3 and 4 due to photogrammetry patches. Ripples much better, indicating the improved signal-feed region absorber helped a lot. Not back to 2003/2004/2005 quality, though. |
DTE |
2006/12/19 |
Holo7bc.sdm |
104 |
180 |
AZ |
13.0/13.0 |
+13 |
-2.0 |
1.39e(-2)/0.437 |
bad |
Very poor amplitude stability. NO GOOD. |
DTE |
2006/12/19 |
Holo88d.sdm |
104 |
180 |
EL |
13.0/13.0 |
+13 |
-2.0 |
1.36e(-3)/0.314 |
unknown |
|
DTE |
2006/12/19 |
Holo876.sdm |
104 |
180 |
AZ |
13.0/13.0 |
+13 |
-2.0 |
|
bad |
BAD ROW (antenna went way off track). NO GOOD. |
DTE |
2006/12/20 |
Holo8a0.sdm |
104 |
180 |
AZ |
13.0/13.0 |
+13 |
-2.0 |
1.38e(-3)/0.215 |
bad |
ICE ON SURFACE (mainly bottom). NO GOOD. |
DTE |
2006/12/20 |
Holo8ca.sdm |
104 |
180 |
EL |
13.0/13.0 |
+13 |
-2.0 |
|
unknown |
|
DTE |
2006/12/20 |
Holo8dd0.sdm |
104 |
180 |
AZ |
13.0/13.0 |
+13 |
-2.0 |
2.78e(-3)/0.367 |
good |
Good map. |
DTE |
2006/12/20 |
Holo8f0.sdm |
104 |
180 |
EL |
13.0/13.0 |
+13 |
-2.0 |
1.79e(-3)/0.212 |
good |
Good map. |
DTE |
2006/12/20 |
Holo903.sdm |
104 |
180 |
EL |
13.0/13.0 |
+13 |
-2.0 |
|
unknown |
Changed the Tx frequency by -60 MHz, to put it into the LSB sideband of the receiver, which normally runs as a USB system. Didn't touch the receiver frequency or attenuators. The level in the receiver was nearly identical (perhaps 5% weaker, that's all). The new Tx frequency, according to the Labview control, is 103.95998486 GHz (instead of the usual ~104.02 GHz). |
DTE |
2006/12/21 |
Holo943.sdm |
104 |
180 |
AZ |
11.5/11.5 |
+13 |
-2.0 |
2.78e(-3)/0.329 |
good |
Map made after having removed the 3rd feed leg cover out from the prime focus, on each of the 4 feed legs. This was the cover that was giving reflections from feed to dish, as indicated by Darrel's laser pointer. |
DTE |
2006/12/22 |
Holo97c.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
2.56e(-3)/0.404 |
good |
NEW ABSORBER PLACED AROUND TX. Map made after fixing Tx (had failed to start again after holography tower absorber installation). Amplitude stability not great at start due to Tx warming up after restart. |
DTE |
2006/12/22 |
Holo98f.sdm |
104 |
180 |
AZ |
12.5/12.5 |
+13 |
-2.0 |
1.26e(-3)/0.266 |
good |
Good map. |
DTE |
Date | SDM File Name | Band | Nrow | Sdir | VDSP(SS/RR) | PTX(dBm) | Focus(mm) | RMS(A/P) | Quality | Comment | Observer |
---|---|---|---|---|---|---|---|---|---|---|---|
2006/11/09 |
Holo355d3.sdm |
104 |
180 |
AZ |
? |
+7.5 |
|
? |
good |
Fixed Tx frequency problem. |
JGM |
2006/11/09 |
Holo35ae1.sdm |
79 |
180 |
AZ |
? |
+7.5 |
|
? |
good |
79 GHz observation with what is suspected to be 104 GHz horn installed. Also more Eccosorb on front of prime focus. |
JGM |
2006/11/09 |
Holo35c41.sdm |
104 |
180 |
AZ |
? |
+7.5 |
|
? |
good |
104 GHz observation with what is suspected to be 104 GHz horn. |
JGM |
2006/11/09 |
Holo35c42.sdm |
79 |
180 |
AZ |
? |
+7.5 |
|
2.51e(-3)/0.244 |
good |
79 GHz observation with what is suspected to be the 79 GHz horn installed. Fit focus = 6.6mm. Extreme ripples (DSP input too high?). |
JGM |
2006/11/09 |
Holo35ec1.sdm |
79 |
180 |
AZ |
? |
+7.5 |
|
? |
good |
79 GHz observation with what is suspected to be the 79 GHz horn installed. |
JGM |
2006/11/09 |
Holo35ec2.sdm |
79 |
180 |
AZ |
? |
+7.5 |
|
? |
good |
79 GHz observation with what is suspected to be the 79 GHz horn installed. |
JGM |
2006/11/09 |
Holo35ec3.sdm |
79 |
180 |
AZ |
? |
+7.5 |
|
? |
good |
79 GHz observation with what is suspected to be the 79 GHz horn installed. |
JGM |
2006/11/10 |
Holo362e1.sdm |
79 |
180 |
AZ |
? |
+7.5 |
|
2.90e(-3)/0.229 |
good |
Hornless observed at 79 GHz. Best fit focus = -27.2mm. |
JGM |
2006/11/10 |
Holo36481.sdm |
104 |
180 |
AZ |
? |
+7.5 |
-4.0 |
3.08e(-3)/0.219 |
good |
104 GHz horn reinstalled. Unidirectional. Peaked axial focus to -4mm. |
JGM |
2006/11/10 |
Holo365d1.sdm |
104 |
180 |
AZ |
? |
+7.5 |
-4.0 |
3.11e(-3)/0.176 |
good |
Unidirectional. Eccosorb over manhole for half of map. RR power near saturation at end. Ripples. |
JGM |
2006/11/10 |
Holo36721.sdm |
104 |
360 |
AZ |
? |
+7.5 |
-4.0 |
2.12e(-3)/0.923 |
bad |
Double number of rows (to 360). Segfaults CLIC. Poor phase stability. |
JGM |
2006/11/10 |
Holo36722.sdm |
104 |
180 |
AZ |
? |
+7.5 |
-4.0 |
? |
bad |
Died near middle of map for no apparent reason. |
JGM |
2006/11/11 |
Holo368b1.sdm |
104 |
180 |
AZ |
18-5/18-5 |
+7.5 |
-4.0 |
1.61e(-3)/0.285 |
good |
Ran at high (RR/SS=18.0) boresight signal levels at beginning. Dropped to 5.0 for both at end. Ripples. |
JGM |
2006/11/11 |
Holo368b2.sdm |
104 |
180 |
AZ |
15-5/15-5 |
+7.5 |
-4.0 |
5.97e(-3)/0.388 |
good |
Ran at high (RR/SS=15.0) boresight signal levels at beginning. Dropped to 5.0 for both at end. Ripples. |
JGM |
2006/11/11 |
Holo36b62.sdm |
104 |
180 |
AZ |
15/15 |
+7.5 |
-4.0 |
1.62e(-3)/1.45 |
bad |
Ran at high (RR/SS=15.0) boresight signal levels throughout. Very poor phase stability. Windy. |
JGM |
2006/11/11 |
Holo36df1.sdm |
104 |
180 |
AZ |
15/15 |
+7.5 |
-4.0 |
1.44e(-3)/1.67 |
bad |
Ran at high (RR/SS=15.0) boresight signal levels throughout. Also scanned at 600 arcsec/sec with boresight every row. Windy. |
JGM |
2006/11/11 |
Holo370c1.sdm |
104 |
180 |
AZ |
15/15 |
+7.5 |
-4.0 |
2.13e(-3)/1.01 |
good |
Ran at high (RR/SS=15.0) boresight signal levels throughout. Removed eccosorb from focus ring around signal feed. Windy. Ripples not as extreme. |
JGM |
2006/11/11 |
Holo370c2.sdm |
104 |
180 |
AZ |
15/15 |
+7.5 |
-4.0 |
1.21e(-3)/0.986 |
good |
Ran at high (RR/SS=15.0) boresight signal levels throughout. Removed eccosorb from focus ring around signal feed. Windy. Ripples not as bad. |
JGM |
2006/11/11 |
Holo370c3.sdm |
104 |
180 |
AZ |
5/5 |
+7.5 |
-4.0 |
1.05e(-3)/0.820 |
good |
Ran at low (RR/SS=5.0) boresight signal levels at throughout. Removed eccosorb from focus ring around signal feed. Windy. Not as rippled. |
JGM |
2006/11/15 |
Holo37601.sdm |
104 |
180 |
AZ |
10/10 |
+13 |
-2.0 |
3.91e(-3)/0.335 |
good |
Ran with now-thought-to-be-correct high +13 dBm transmitter output power. Ripples. |
DTE |
2006/11/15 |
Holo37602.sdm |
104 |
180 |
AZ |
10/10 |
+13 |
-2.0 |
? |
bad |
Ran with now-thought-to-be-correct high +13 dBm transmitter output power. DSP oscillation at start. |
DTE |
2006/11/15 |
Holo37603.sdm |
104 |
180 |
AZ |
1/1 |
+13 |
-2.0 |
2.42e(-3)/0.212 |
good |
Ran with now-thought-to-be-correct high +13 dBm transmitter output power. Ripples (so existence of ripples is not correlated with DSP input). |
DTE |
2006/11/15 |
Holo379b1.sdm |
104 |
180 |
AZ |
13/13 |
+13 |
-2.0 |
1.28e(-3)/0.158 |
good |
Ripples. |
DTE |
2006/11/15 |
Holo38041.sdm |
104 |
180 |
EL |
8-11/8-11 |
+13 |
-2.0 |
1.78e(-3)/0.479 |
good |
Ripples. |
DTE |
2006/11/16 |
Holo37dc1.sdm |
104 |
180 |
EL |
10/10 |
+13 |
-2.0 |
1.59e(-3)/0.393 |
good |
|
DTE |
2006/11/16 |
Holo37dc2.sdm |
104 |
180 |
EL |
13/13 |
+13 |
-2.0 |
2.29e(-3)/0.226 |
good |
Ripples. |
DTE |
2006/11/17 |
Holo38191.sdm |
104 |
180 |
EL |
13/13 |
+13 |
-2.0 |
? |
bad |
"TELCAL" failed (segmentation fault), crashing the elevation scans after 178 subscans. |
DTE |
2006/11/17 |
Holo381b1.sdm |
104 |
180 |
AZ |
10/10 |
+13 |
-2.0 |
2.85e(-3)/0.381 |
good |
|
DTE |
2006/11/18 |
Holo38301.sdm |
104 |
180 |
AZ |
13-8/13-18 |
+13 |
-2.0 |
1.30e(-2)/0.730 |
bad |
Amplitude jump during map. By the end of the map, the reference signal had crept up from 13 V to 18 volts, which is where saturation has already set in to some degree. The main signal however had gone down from 13 volts to 8 volts, which is the normal behavior we've been seeing. I don't understand this, unless there were ice or dew or something on the reference feed while I was setting the dBs in the receiver, and it melted or dried off during the observations. The antenna is facing the sun. |
DTE |
2006/11/18 |
Holo38302.sdm |
104 |
180 |
AZ |
11-10/11-10 |
+13 |
+2.5 |
3.55e(-3)/0.341 |
good |
Set the focus from -2000 to +2500, which takes the main signal to approximately the -3 dB point in focus. The theory is that with this map, the spurious rings in the outer surface map should decrease by 6 dB. |
DTE |
2006/11/18 |
Holo38303.sdm |
104 |
180 |
AZ |
11.5/11.5 |
+13 |
-2.0 |
4.12e(-3)/0.473 |
good |
|
DTE |
2006/11/23 |
Holo3e541.sdm |
104 |
180 |
AZ |
13-14/13-14 |
+13 |
-2.0 |
1.27e(-3)/0.473 |
good |
First map since position-tagging fix. Appears that positions are being tagged correctly now. Ripples just as bad as before. |
NJE |
2006/11/27 |
Holo3e6e2.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
good |
reference map for stability |
RLucas |
2006/11/27 |
Holo3e6e3.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.79 |
? |
unknown |
move the focus by about lambda/4, ringing pattern unchanged |
RLucas |
2006/11/27 |
Holo3e6e4.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
reference map for stability again |
RLucas |
2006/11/28 |
Holo3eab2.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/28 |
Holo3eab3.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/28 |
Holo3eab5.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/28 |
Holo3eab6.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/28 |
Holo3eab8.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/28 |
Holo3eab9.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
bad |
Not in the archive |
RLucas |
2006/11/28 |
Holo00022.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/29 |
Holo00023.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/29 |
Holo00024.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/29 |
Holo00025.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/29 |
Holo3f1e1.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
|
RLucas |
2006/11/29 |
Holo3f1e4.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
Snow on the dish |
RLucas |
2006/11/29 |
Holo3f5b1.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
Horn replaced by waveguide Snow on the dish |
RLucas |
2006/11/29 |
Holo3f751.sdm |
104 |
180 |
AZ |
? |
+13 |
-2.0 |
? |
unknown |
Horn replaced by waveguide,Snow on the dish, snow on transmitter? |
RLucas |
2006/11/30 |
Holo3f8b1.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
1.97e(-3)/0.287 |
good |
Signal feed horn replaced by waveguide. Ice on dish melted. Ripples |
JGM |
2006/11/30 |
Holo3f8b2.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
3.74e(-3)/0.411 |
good |
Signal feed horn relaced by waveguide. Absorber placed over Tx feed (to test reflection theory). Ripples and astigmatism still present (but maybe a little bit diminished?). |
JGM |
2006/11/30 |
Holo3f8b4.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
2.02(e-3)/0.315 |
good |
Signal feed horn put back. Absorber placed over Tx feed (to test reflection theory). Ripples and astigmatism still present (but maybe a little bit diminished relative to no-absorber case?). |
JGM |
2006/11/30 |
Holo3fc72.sdm |
104 |
180 |
AZ |
12.0/12.0 |
+13 |
-2.0 |
298/3.77 |
bad |
Adjusted panels 7-63 and 11-64 up (i.e. toward the prime focus) by 100 micron. Also rotated signal feed 180 degrees. Amplitude and phase had big jump at start of map. DATA NO GOOD. |
JGM |
Date | SDM File Name | Quality | Comment | Observer |
---|---|---|---|---|
5 November 2006 |
Holo33f9.sdm |
bad |
RL notes data dropouts and timing problems. |
JGM,DTE,RM |
6 November 2006 |
Holo34331.sdm |
bad |
DSP symmetric failure at start. RL finds many samples with zero position. Bug in data acquisition. Fixed by RS 2006/11/07 |
JGM,DTE |
6 November 2006 |
Holo34332.sdm |
bad |
Possible few-percent reference signal saturation. RL finds many samples with zero position. Bug in data acquisition. Fixed by RS 2006/11/07 |
JGM,DTE,RM |
6 November 2006 |
Holo34333.sdm |
bad |
NOT EXTRACTABLE FROM ARCHIVE. NOT ANALYZABLE. |
JGM |
6 November 2006 |
Holo346f1.sdm |
bad |
NOT EXTRACTABLE FROM ARCHIVE. Seems to have died with "Failed to invoke 'cleanup' LifeCycle...". Then, the ever popular "other exception"! NOT ANALYZABLE. |
JGM |
6 November 2006 |
Holo34711.sdm |
bad |
No apparent problems noticed. RL finds many samples with zero position. Bug in data acquisition. Fixed by RS 2006/11/07 |
JGM |
6 November 2006 |
Holo34712.sdm |
bad |
No apparent problems noticed. RL finds many samples with zero position. Bug in data acquisition. Fixed by RS 2006/11/07 |
JGM |
6 November 2006 |
Holo34713.sdm |
bad |
No apparent problems noticed. RL finds many samples with zero position. Bug in data acquisition. Fixed by RS 2006/11/07 |
JGM |
6 November 2006 |
Holo34714.sdm |
bad |
No apparent problems noticed. Slightly adjusted attenuation on reference at start of map. RL finds many samples with zero position. Bug in data acquisition. Fixed by RS 2006/11/07 |
JGM |
7 November 2006 |
Holo34ac1.sdm |
bad |
Timing drop problem. |
JGM |
7 November 2006 |
Holo34d61.sdm |
unknown |
?? |
JGM |
7 November 2006 |
Holo34d62.sdm |
unknown |
?? |
JGM |
7 November 2006 |
Holo34d63.sdm |
bad |
Crappy positioning and points with 10**7 amplitudes. Trash. |
JGM |
8 November 2006 |
Holo35471.sdm |
bad |
Attempt at 79 GHz map. Failed. M&C issues (tuneLow does not work, for example). |
JGM |
8 November 2006 |
Holo352f1.sdm |
bad |
Scan and pointing data look ok. Positions still not right. Could not fit for focus. Found later that Tx was tuned to second frequency sidelobe. |
JGM |
8 November 2006 |
Holo355d1.sdm |
bad |
Found later that Tx was tuned to second frequency sidelobe. |
JGM |
8 November 2006 |
Holo355d2.sdm |
bad |
Found later that Tx was tuned to second frequency sidelobe. |
JGM |