GTAC Observation Log

1. Date : 25/07/2021
2. Observation Sr. No. : 13334
3. Observer : Maurilio Pannella, Alex Saro, Veronica Strazzullo, Rosita Paladino, Luca Di Mascolo, Stefano Borgani, Chris Carilli, Paolo Tozzi, Elena Rasia
4. Observer\'s Email : mpannella@units.it, alexandro.saro@inaf.it, vstrazzullo@units.it, paladino@ira.inaf.it, lucadim@mpa-garching.mpg.de, stefano.borgani@inaf.it, ccarilli@nrao.edu, paolo.tozzi@inaf.it, elena.rasia@inaf.it
5. Project Name : Exploring the large scale environment and star formation properties of the Spiderweb proto-cluster at z = 2.17 with the uGMRT
6. Project Code : 40_027
7. Operator(s) : Nilesh, Shilpa, Shriram
8. Command File : /data1/gtac/cmd/40_027/obs.py
9. LTA File : /gsbifrdata1/25jul/40_027_25jul2021_gsb.lta, /gwbifrdata2/25jul/40_027_25jul2021_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 : 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 : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :26

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
W04 : LMC not pinging
W05 : LMC not pinging
W06 : LMC not pinging

33. Note for Backup :

34. Start and End Time of Obs.(IST): 25 Jul 2021 12:00:00 - 25 Jul 2021 20:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 40_027
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  	: 8 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
--------------------------------
12:00 : Started settings.
12:16 : Power equalized on 3C147.
12:21 : Started command file,
       \'/data1/gtac/cmd/40_027/obs.py\'
note: - Phase cal was not up, so started loop from source.

12:37 : W01 not tracking properly due to electrical problem.
13:17 : W01 started tracking.
14:54 : W04 and W06 started working.
15:20 : W05 released for observation and started working.

19:42:00 : Stopped command file.
19:45:40 : Started scan on 1154-350 for ~ 3.93705 min.
19:53:51 : Started scan on 3C286 for ~ 7.69514 min.

20:01 : Stopped scan and closed observation.