GTAC Observation Log

1. Date : 25/08/2018
2. Observation Sr. No. : 10492
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 : 34_024
7. Operator(s) : Navnath, Nilesh, Sachin
8. Command File : /odisk/gtac/cmd/nissim/3c345_fq.cmd, /odisk/gtac/cmd/nissim/0023-263_fq2.cmd, /odisk/gtac/cmd/nissim/3c48_fq.cmd
9. LTA File : /gsbifrdata/24aug/34_024_24aug2018_gsb.lta, /gwbifrdata1/24aug/34_024_24aug2018_gwb.lta, /gwbifrdata2/24aug/34_024_24aug2018_gwb.lta.1
10. LogFlag File : /odisk/online1/logflags/34_024.FLAGS.2

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 : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C10 : Mechanical work.
W06 : Mechanical work.
S02 : Feed jammed

33. Note for Backup :

34. Start and End Time of Obs.(IST): 24 Aug 2018 14:00:00 - 25 Aug 2018 07:20:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :28

37. Comments (During Observations) :
14:00 : Started settings.

------------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  	: 16384
GPU_CHAN_NUM  	: 0:16383:1
GPU_STOKES  	: 130; 2 Total_Intensity; 4 Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 1462  1462
GPU_DDCLO4  	: 38.0  38.0
GPU_SB4  	: 1 1
GCODE4  	: 34_024
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 128
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 8 Bits.
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: 
--------------------------------

14:20 : Started command file.
NOTE : Scans # 0,1,2 are bad in GSB, due to wrong TPA /odisk/gtac/cmd/nissim/0023-263_fq2.cmd.
values.
16:06 : W06 Released for observation.
19:20 : S02 Started working.
23:30 : Stopped command file and started 
/odisk/gtac/cmd/nissim/0023-263_fq2.cmd.
06:40 : Stopped command file and started
/odisk/gtac/cmd/nissim/3c48_fq.cmd
07:16 : Closed observation session.