GTAC Observation Log

1. Date : 27/08/2017
2. Observation Sr. No. : 9707
3. Observer : Nirupam Roy, Nissim Kanekar, Jayaram Narayanan Chengalur, Narendranath Patra
4. Observer's Email : roy.nirupam@gmail.com, nkanekar@ncra.tifr.res.in, chengalur@ncra.tifr.res.in, narendra@ncra.tifr.res.in
5. Project Name : The Temperature of the Warm Neutral Medium in the Milky Way
6. Project Code : 32_056
7. Operator(s) : Deepak, Navnath, Surender
8. Command File : /odisk/gtac/cmd/nissim/1326\+319.cmd,, /odisk/gtac/cmd/nissim/1308-098.cmd
9. LTA File : /gsbifrdata1/27aug/32_056_27aug2017.lta.2, /gsbifrdata1/27aug/32_056_27aug2017.lta.1, /gsbifrdata1/27aug/32_056_27aug2017.lta, /gwbifrdata1/27aug/32_056_27aug2017_gwb.lta.1, /gwbifrdata1/27aug/32_056_27aug2017_gwb.lta
10. LogFlag File : /odisk/online1/logflags/32_056.FLAGS.9

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1411 MHz ,RF2 : 1411 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1350 MHz, ILO2 : 1350MHz , IVLO1 : 61 MHz, IVLO2 : 61 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 16.666666 MHz
24. Final BW : 2 MHz; Step # 4
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 139
28. LO5 -2  : 166

29. Frequency Parameters (TPA) : 1411 1411 1350 1350 61 61
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :30

32. Name of Non-Working Antennas (with reason for each) :
E02 : 175 pol low fringe in GSB.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 27 Aug 2017 10:00:00 - 27 Aug 2017 20:10:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :30

37. Comments (During Observations) :
------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 100.0000
GPU_FINAL_BW  	: 6.25
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 8192
GPU_CHAN_NUM  	: 0:8191:1
GPU_STOKES  	: 130; 2 Total_Intensity; 4 Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 1460  1460
GPU_DDCLO4  	: 36.75  36.75
GPU_SB4  	: 1 1
GCODE4  	: 32_056
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_1  	: :
GPU_BEAM_2  	: :
GPU_BM_INT  	: 128
GPU_GAINEQ  	: ON
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 32 inputs.
GPU_FILRFI  	: RFI Filterring OFF
--------------------------------

-----------------------------------------------------------------------
09:45:00 : Started set-up.
09:50:47 : Started scan on 3C147 for ~ 24.4276 min.
10:20:38 : Started scan on 1326+319 for ~ 5.3687 min.
10:27:16 : Started scan on 1326+319B for ~ 5.63714 min.
10:33:58 : Started command file.
            "/odisk/gtac/cmd/nissim/1326+319.cmd"
15:00:00 : Stopped command file.
--------------------------------------------
15:02 : Started cmd file.

 /odisk/gtac/cmd/nissim/1308-098.cmd

18:50 : GSB DAS chain hung during observation. GWB Running so only stopped GSB DAS Chain.

19:08 : GSB Chain Restarted after giving hard reboot to gsbm1 host machine.
19:08:00 : Started scan on 1308-098 for ~ 3.48966 min.
19:12:40 : Started scan on 1308-098B for ~ 5.10027 min.
19:19:03 : Started scan on 1308-098 for ~ 5.3687 min.
19:25:42 : Started scan on 1308-098B for ~ 5.10027 min.
19:32:01 : Started scan on 1308-098 for ~ 5.3687 min.
19:38:29 : Started scan on 1308-098B for ~ 5.63714 min.
19:45:09 : Started scan on 1308-098 for ~ 5.3687 min.
19:50 : src below horizon.
19:54:08 : Started scan on 3C286 for ~ 12.348 min.
20:00 : Observation session over.
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