GTAC Observation Log

1. Date : 16/06/2023
2. Observation Sr. No. : 15511
3. Observer : Kamlesh Rajpurohit, Ewan O`Sullivan, Francesca Loi, Gerrit Schellenberger, Laurence Paul David, Marisa Brienza, Jan M. Vrtilek, Konstantinos Kolokythas, Giacintucci Simona
4. Observer\'s Email : kamlesh.rajpurohit@cfa.harvard.edu, eosullivan@cfa.harvard.edu, francesca.loi@inaf.it, gerrit.schellenberger@cfa.harvard.edu, ldavid@head.cfa.harvard.edu, marisa.brienza@inaf.it, jvrtilek@cfa.harvard.edu, k.kolok@nwu.ac.za, simona.giacintucci@nrl.navy.mil
5. Project Name : Understand the dynamics of the NGC 741-742 galaxy group
6. Project Code : ddtC284
7. Operator(s) : Nilesh, Pramod, Rupsing
8. Command File : /data1/gtac/cmd/ddtc284/ddtC284_16Jun2023_0500_cmd.py
9. LTA File : /gsbifrdata1/16jun/ddtc284_16jun2023_b4_gsb.lta, /gwbifrdata1/16jun/ddtc284_16jun2023_b4_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+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/TGC
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Full_Stokes
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 : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
W04 : Servo problem.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 16 Jun 2023 04:45:00 - 16 Jun 2023 10:45:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :29

37. RFI Status :

38. Comments (During Observations) :
04:45 : Started settings.

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 4096
GPU_CHAN_NUM  	: 0:4095:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: DDTC284
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 8
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 4 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: ON
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_WALSH  	: OFF
GPU_ENV  	: RELEASED
--------------------------------

05:04 : Started command file.
           /data1/gtac/cmd/ddtc284/ddtC284_16Jun2023_0500_cmd.py

Note : 3C138 is rising at ~ 07:11 IST, so modified loop accordingly to observe 3C48 instead of 3C138 till 07:00 IST.
-------------------------------------------------------------------
09:48 : E03 parked due to high wind.
------------------------------------------------------------------
10:10 : E03 Started working.
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10:42 : Scan no.14 is bad.
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11:05 : Stopped command file and observation over.