GTAC Observation Log

1. Date : 14/09/2022
2. Observation Sr. No. : 14604
3. Observer : Aditya Chowdhury, Nissim Kanekar, Jayaram Narayanan Chengalur, Balpreet Kaur
4. Observer\'s Email : chowdhury@ncra.tifr.res.in, nkanekar@ncra.tifr.res.in, chengalur@ncra.tifr.res.in, bkaur@ncra.tifr.res.in
5. Project Name : The HI Properties of Star-forming Galaxies at z ≈ 1
6. Project Code : 42_082
7. Operator(s) : Deepak, Navnath, Rupsing, Shriram
8. Command File : /data1/gtac/cmd/42_082/13sept.cmd.py
9. LTA File : /gsbifrdata/13sep/42_082_13sep2022_gsb.lta, /gwbifrdata/13sep/42_082_13sep2022_1.3s_gwb.lta, /gwbifrdata1/13sep/42_082_13sep2022_10s_gwb.lta
10. LogFlag File :  

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+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE/TGC
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 : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 591 591 540 540 51 51
30. Integration Time : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :25

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
C00 : Low fringe.
C02 : Telemetry problem
C11 : Telemetry problem.
C14 : LMC down.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 13 Sep 2022 20:00:00 - 14 Sep 2022 07:45:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :24

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 2
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400
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  	: 42_082
GPU_CNTRL  	: ONLINE/TGC
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  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: OFF
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_WALSH  	: OFF
GPU_ENV  	: RELEASED
----------------------------------------------------------------------
# GWB GAC configuration is as follows : 

# BEAM-3:130 :: C01 C04 C05 C06 C08 C09 C10 C12 C13 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=25
# BEAM-3:175 :: C01 C04 C05 C06 C08 C09 C10 C12 C13 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=25
# BEAM-4:130 :: C01 C04 C05 C06 C08 C09 C10 C12 C13 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=25
# BEAM-4:175 :: C01 C04 C05 C06 C08 C09 C10 C12 C13 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=25
------------------------------------------------------------------------
20:15 : Started command file
00:17 : Power failure at all antennas. Stopped command file.
scan 8 is bad.
00:30 : Restarted command file starting with phase cal.
00:37 : S01 removed from GAC. No electrical power.
----------------------------------------------------------------------
Note- Observation extended in to white slot to compensate lost time.
----------------------------------------------------------------------
07:16 : Command file stopped.
07:19 : Started scan on 0204+152 for ~5 min.
07:27 : Started scan on 3C48 for ~20 min.
07:45 : Observation session over.
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