GTAC Observation Log

1. Date : 06/07/2020
2. Observation Sr. No. : 12186
3. Observer : Aditya Chowdhury, Nissim Kanekar, Jayaram Narayanan Chengalur
4. Observer\'s Email : chowdhury@ncra.tifr.res.in, nkanekar@ncra.tifr.res.in, chengalur@ncra.tifr.res.in
5. Project Name : %latex% The Atomic Hydrogen Content of Galaxies at $z \\\\\\\\approx 0.74-1.45$
6. Project Code : 38_033
7. Operator(s) : Deepak, Rupsing
8. Command File : /odisk/gtac/cmd/chowdhury/deep2_21.cmd
9. LTA File : /gsbifrdata1/05jul/38_033_05jul2020_gsb.lta, /gwbifrdata1/05jul/38_033_05jul2020_10s_gwb.lta, /gwbifrdata2/05jul/38_033_05jul2020_1s_gwb.lta
10. LogFlag File : /odisk/online1/logflags/38_033.FLAGS.3, /odisk/online1/logflags/38_033.FLAGS.2

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , IVLO1 : 51 MHz, IVLO2 : 51 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 : 33.333333 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 591 591 540 540 51 51
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :26

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical maintenance
C14 : Servo problem.
W01 : RF setting problem
E05 : GWB 130 pol no fringe
E06 : ABC time out

33. Note for Backup :

34. Start and End Time of Obs.(IST): 05 Jul 2020 18:00:00 - 06 Jul 2020 02:00:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :26

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 2
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400.0000
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 8192
GPU_CHAN_NUM  	: 0:8191:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 530  530
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 38_033
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: IA
GPU_BM_INT  	: 16
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
--------------------------------
# BEAM-4:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 S01 S02 S03 S04 W02 W03 W04 W05 W06 Total=24
# BEAM-4:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 E04 E05 S01 S02 S03 S04 W02 W03 W04 W05 W06 Total=25
--------------------------------------

18:00 : Started setup.
18:30 : problem while initializing GSB das chain. Problem solved after restarting ONLINE and clearing old GSB processes.
18:45 : Started scan on 3C286 for 7mins.
18:52 : Started command file.
----------------------------------------------------------------
01:41 : Stopped command file.
01:49 : Started scan on 3C48.
02:00 : Stopped scan and observation session over.