317b

APOD tracking test.

• Antennas: Hb Ke Yg

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# Schedule summary for session: 317b                                              #
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Nominal start:     2016-11-12 21:35:00
Nominal end:       2016-11-12 22:09:49
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Scan#  Source name              Type  Start [UT]  End [UT]  Dur [s]  Sations
1      0454-234                 q     21:35:00    21:35:30  30       Hb Ke Yg
2      0851+202                 q     21:36:16    21:36:46  30       Hb Ke Yg
3      1334-127                 q     21:37:31    21:38:01  30       Hb Ke Yg
4      1057-797                 q     21:38:46    21:39:24  38       Hb Ke Yg
5      0537-441                 q     21:40:01    21:40:31  30       Hb Ke Yg
6      PN1A [BAC]               s     21:46:06    21:52:04  358      Ke
7      PN1A [BAC]               s     21:52:05    21:54:46  161      Ke Yg
8      PN1A [BAC]               s     21:54:47    21:55:41  54       Yg
9      PN1A [BAC]               s     21:55:42    21:57:59  137      Hb Yg
10     0454-234                 q     22:03:45    22:04:15  30       Hb Ke Yg
11     1424-418                 q     22:05:11    22:05:41  30       Hb Ke Yg
12     1057-797                 q     22:06:18    22:06:56  38       Hb Ke Yg
13     0851+202                 q     22:08:02    22:08:32  30       Hb Ke Yg
14     0537-441                 q     22:09:19    22:09:49  30       Hb Ke Yg
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• With VieVS Satellite scheduling tool, by A. Hellerschmied
  • quasar block scheduled automatically
  • APOD scans manually scheduled
• Schedule summary: 317b_sum_bearb.txt
• Sky plots: sky_317b_hb_2135-2209.pdf sky_317b_ke_2135-2209.pdf sky_317b_yg_2135-2209.pdf
• Block of 5 strong quasars were observed before and after the APOD scans
  • Min scan duration set to 30 sec
  • Sub-netting deactivated
• See catalog files for full setup
• 1 sec time gap in VEX files between APOD scans
  • Continuous tracking and recording
• Min. 5 min time gap before after sat. scans to load antenna control files

• Observers: Jamie, Lucia, Andreas
• Comments: ke overhead track, couldn't keep up at high elevations. Yg looked good, appeared to be stable throughout. Hb didn't look too good, weak and unstable at s-band, even at low elevation (very low elevation at Hb, slightly over 5 deg cut-off elevation).

• Satellite tracking based on direct AzEl input files
  • Azel values were calculated in VieVS based on predicted WGS84 state vectors (provided by J. Sun)
• Station equipment controlled by station dependent VEX files

• All control files used for the observations (VEX schedules, schedule summaries, orbit files, AzEl tracking files, etc.) are provided on the VieVS server (sorts@vievs.hg.tuwien.ac.at) at /home/sorts/apod/2016/
  • Azel tracking files for all antennas (1 sec interval)
  • VEX file (station depended and combined)
  • VIE_SCHED files
    • used control + catalog files, TLEs
  • predicted WGS84 state vectors (1 sec interval, by J. Sun)
  • predicted AzEl posititons (1 sec interval, by J. Sun)
• Results:
  • Plot showing fringe fitting results (residual multiband delays, delay rates, SNR, formal errors):
  • VSO observation files containing the multiband total delays calculated by HOPS/fourfit (remove the .txt file name extension to load the VSO files in VieVS): 317b.07_redclk-ion_free.vso.txt 317b.07_redclk-s.vso.txt 317b.07_redclk-x.vso.txt 317b.09_redclk-ion_free.vso.txt 317b.09_redclk-s.vso.txt 317b.09_redclk-x.vso.txt