GTAC Observation Log

1. Date : 26/03/2023
2. Observation Sr. No. : 15276
3. Observer : Abhirup Datta, Nirupam Roy, Arnab Chakraborty, Aishrila Mazumder, Akriti Sinha, samir choudhuri, Suman Majumdar, Kanan Kumar Datta, TirthankarRoy Choudhury, Rashmi Sagar, Prasun Dutta, Somnath Bharadwaj, Madhurima Choudhury, Abhik Ghosh, Srijita Pal
4. Observer\'s Email : Abhirup.Datta@iiti.ac.in, roy.nirupam@gmail.com, phd1601121009@iiti.ac.in, aishri0208@gmail.com, sinha.akriti44@gmail.com, samir.svc@gmail.com, s.majumdar@imperial.ac.uk, kanan.physics@presiuniv.ac.in, tirth@hri.res.in, phd2101121003@iiti.ac.in, pdutta.phy@itbhu.ac.in, somnath@phy.iitkgp.ernet.in, phd1601121002@iiti.ac.in, ghosh@astro.rug.nl, srijitapal.phy@gmail.com
5. Project Name : Characterizing Foregrounds in 21cm Cosmology Observations with the uGMRT at 120 - 240 MHz - Phase 1
6. Project Code : 41_099
7. Operator(s) : Rupsing, Shilpa
8. Command File : /data1/gtac/cmd/41_099/41_099_26Mar2023_0400_cmd.py
9. LTA File : /gsbifrdata1/26mar/41_099_26mar2023_b2_gsb.lta, /gwbifrdata/26mar/41_099_26mar2023_b2_gwb.lta
10. LogFlag File :     

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 14 dB, SA2 : 14 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : TGC
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Full_Stokes
21. Beam - 1 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 16.666666 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 138
28. LO5 -2  : 167

29. Frequency Parameters (TPA) : 156 156 218 218 62 62
30. Integration Time : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
C04 : No fringe in GSB+GWB


33. Note for Backup :

34. Start and End Time of Obs.(IST): 26 Mar 2023 04:00:00 - 26 Mar 2023 13:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
Note : Target source and phase cal set early.
------------GWB Setting---------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 8
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 8192
GPU_CHAN_NUM  	: 0:8191:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: -1 -1
GPU_RF4  	: 300 300
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 41_099
GPU_CNTRL  	: 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  	: Voltage Detection
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
------GWB RFI Filter Setting----------------------------------------------
FILTERED_SIGNALS	:	RFI_ALL			# RFI_ALL=All signals filtered / RFI_CH1 =Channel 1 only / RFI_CH2=Channel 2 only
EXTERNAL MEDIAN	:	0			# integer value(-128 to 127)
THRESHOLD VALUE	:	4			# integer value(0 to 127)
CONSTANT VALUE		:	0			# integer value(-128 to 127)
FILTERING OPTION	:	DIGITAL NOISE		# BYPASS / CONSTANT=constant value is used / THRESHOLD / DIGITAL_NOISE
DDC_STATUS		:	OFF			# DDC = ON/OFF
--------------------------------------------------------------------------
04:20 : \'/data1/gtac/cmd/41_099/41_099_26Mar2023_0400_cmd.py\' command file started.
09:35 : W02 taken for mechanical work.
10:00 : Phase cal J1549+506 set.
10:20 : Target source ELAISN1 set.
10:20 : Due to target source and phase cal set, stopped command file.

10:26 : Started scan on 3C48.
10:48 : Stopped scan and observing session over.