Notes for 20-21 May 04 MEX BSR Experiment (Mars Northern Plains) Files and sources DKF: mger1:/domops/data/sle/41/seq/misc/dkf/xd019a.01.dkf ????? May ?? ??:?? TSOE: mger1:/domops/data/sle/41/seq/misc/tsoe/xd019a.01.tsoe ????? May ?? ??:?? NOPE and Other Personnel: Jesse Velasco will be on duty Jose Valencia at DSS 14 166 x230 (console) Art Freiley at DSS 14 166 x230 (console) Contact Info: Martin Paetzold FAX: (49) 221-470-5198 Martin Paetzold TEL: (49) 221-470-3385 TCXO Frequency: S-band 2296.482 MHz X-band 8420.432 MHz ERT Activity Quant SRCP=RSR2A SLCP=RSR2B XRCP=RSR3A XLCP=RSR3B RSR rms SNR other rms SNR other rms SNR other rms SNR other --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:14:00 RSR's configured and FGAIN 29 40 29 40 28 60 28 60 R recording; DSS 14 at ATT 16.0 20.5 23.5 21.5 zenith; all receivers on fsamp 25000 25000 25000 25000 ambient loads. Displays set nbits 16 16 16 16 for sum of 5 1024-point FRO 0 0 0 0 FFTs = 0.205s MODE 1-W 1-W 1-W 1-W --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:15:40 X-RCP ND ON 30 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:20:50 X-band to sky 11 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:25:30 X-RCP ND OFF 29 7 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:29 Ambient load temps S1 17.5 R S2 22.69 X1 12.06 12.06 --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:30:50 X-LCP ND ON 29 9 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:35:00 X-band to AMB load 29 29 29 29 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:37 DSS 14 reports sky clear; R 14 MPH wind from WSW --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:40:41 X-LCP ND OFF 29 28 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:46:10 X-band to sky; 30 29 7 6 R S-RCP ND ON --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:51:20 S-RCP to sky 10 28 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 22:55:45 S-RCP ND OFF 8 28 7 6 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 23:01:10 S-LCP ND ON 7 29 6 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 23:05:30 S-LCP to sky 11 6 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 23:10:50 S-LCP ND OFF 7 9 7 6 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 23:14 Ambient load temps S1 17.5 R S2 22.8 S3 12.1 12.1 --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 23:16:00 Stop RSR recording --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 23:36 df 8 41 -1100 -- 7 -- --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 23:45 S-band carrier in lock df 8 44 -1171 7 --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:08 S-band drifting (2-W acquisition) --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:13 X-band acquisition 44 65 --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:15 X-band TLM ON 43 56 --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:20 X-band TLM in lock --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:21- Add FRO to center FRO -21000 8 -21000 7 51 -77000 6 28 -77000 00:22 2-W carrier --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:30:00 Start RSR recording R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:31 8 -- 7 56 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:35 Modulation OFF 8 43 9 -- 7 65 7 35 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:51:28 S/C goes 1-way df +20000 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:54 Change FRO FRO 8 43 +20000 -- +20000 7 66 +75000 +75000 R df -25 -800 --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:56:00 Begin slew 8 43 7 63 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:57:00 8 42 7 50 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 00:58:00 8 41 7 46 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:01:00 -- 26 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:02:30 8 21 7 28 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:04:12 Reset subreflector R controller --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:07:00 8 -- 7 23 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:08 df 8 -- 7 30 -900 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:11:40 RCP ND's ON 11 -- 11 22 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:13 11 -- 8 -- 11 -- 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:14:50 S-RCP ND OFF 8 -- 11 -- R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:17:00 S-LCP ND ON 8 -- 10 -- 11 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:18:40 9 -- R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:20:40 X-RCP ND OFF 9 8 7 -- R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:21:40 LCP ND's ON 11 9 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:26:00 10 9 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:28 LCP ND's OFF 8 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:30 CLR's configured for RCP R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:38 Changed displays to sum 16 df 8 -- 8 11 7 11 7 17 -964 R 8192 pt FFT's = 5.243 s --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 01:50 df 8 5 9 8 7 17 -909 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 02:00 Carrier in both LCP; but no df 8 10 7 18 -905 R surface echoes --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 02:10 Carrier on all 4 channels; 8 9 8 8 8 9 7 16 R no surface echoes --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 02:15 RCP ND's ON 11 11 7 17 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 02:20 RCP ND's OFF 8 8 8 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 02:21 LCP ND's ON; carrier 11 8 10 14 R visible on LCPs --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 02:25:40 LCP ND's OFF 9 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 02:30:00 Stop RSR recording --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 02:30:10 S-band TX OFF --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 03:44 df +12000 --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 03:45 S/C goes 1-way; several FRO to center X-RCP --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 03:48 Start RSR3A recording df 9 56 175 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:00:09 Occultation ingress 9 -- R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:15:00 End of track; start RSR2A, R RSR2B, and RSR3B recording. --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:18:00 9 9 9 8 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:21 8 9 7 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:31 DSS 14 in stow; all 29 28 30 28 R receivers to ambient loads --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:33 RCP ND's ON 31 28 31 28 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:35 Ambient load temps S1 18.12 R S2 22.12 X1 12.56 12.56 --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:37 RCP ND's OFF 29 29 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:38:30 30 28 30 28 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:44:50 30 28 30 28 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:45:20 X-LCP ND ON; 28 29 R S-LCP ND unknown --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:46:20 29 28 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:48:20 DTT 02 reconfigured for 28 28 R S-LCP --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:50:00 29 29 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:53:30 All receivers to sky; 9 21 29 28 R DSS 14 confirms X-band to sky --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:56:50 14 13 7 6 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:57:30 CLR's configured for RCP 16 6 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:59 10 9 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 04:59:30 RCP ND's ON 11 13 11 6 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 05:02:00 11 9 11 7 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 05:03 RCP ND's OFF 8 9 7 6 R --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 05:05:00 Stop RSR recording --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- 05:06 Ambient load temps S1 18.56 S2 22.06 X1 12.94 12.94 --------+---------------------------+-------+---+---+------+---+---+------+---+---+------+---+---+------+--- Quant: S1 S-band LNA-1 ambient load physical temperature (deg C) S2 S-band LNA-2 ambient load physical temperature (deg C) X1 X-band ambient load physical temperature (deg C) fsamp RSR sampling frequency (complex samples per second) nbits number of bits per I or Q RSR sample FRO RSR offset frequency (Hz) FGAIN RSR gain (dB) ATT RSR input (DIG) attenuator setting (dB) df carrier offset from center of passband Notes: 1. Briefing message should refer to 12.5K diodes rather than 15K diodes 2. Briefing message should refer to PRFREA display for ambient load physical temperatures, not the CALREDC display 3. If two noise diodes are running simultaneously, three commands are required to disable them: disable the first, disable the second, disable the first. But even this did not work sometimes; forcing reconfigurations of the cloased loop receivers and significant delays. It may be better to modify the procedure so that only a single noise diode is running at any one time. 4. Stowing the antenna and reconfiguring the receivers to the ambient loads after the pass seems to take 15-20 minutes. The time allocated in the procedure needs to be extended to accommodate this. 5. During the BSR post-cal, the noise levels were all over the place. Some of this was probably due to not being able to control two noise diodes simultaneously (Note 3, above). But there may have been other causes - possibly other tear-down activities that interfered with the BSR post-cal. It would be good to keep these out of the BSR post-cal period, but it is hard to make a recommendation without knowing the cause(s). Dick Simpson Original : 20 May 2004 Revised: 21 May 2004