GTAC Observation Log

1. Date : 25/02/2023
2. Observation Sr. No. : 15157
3. Observer : Ajay Kumar, Yash Bhusare, Arpan Pal, Banshi Lal, Yogesh Maan, Shriharsh P. Tendulkar, Visweshwar Ram Marthi
4. Observer\'s Email : akumar@ncra.tifr.res.in, ybhusare@ncra.tifr.res.in, apal@ncra.tifr.res.in, blal@ncra.tifr.res.in, ymaan4@gmail.com, shriharsh.tendulkar@tifr.res.in, vrmarthi@ncra.tifr.res.in
5. Project Name : Continued monitoring of the active repeating FRB 20220912A with uGMRT
6. Project Code : ddtC261
7. Operator(s) : Sachin, Shilpa
8. Command File : /data1/gtac/cmd/ddtC261/ddtC261_30Jan2023_1600_cmd.py
9. LTA File : /gwbifrdata/25feb/ddtc261b_25feb2023_subar2_gwb.lta, /gwbifrdata/25feb/ddtc261a_25feb2023_subar1_gwb.lta
10. LogFlag File :     

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , 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 : 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) : 306 306 255 255 51 51
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) :
S01 : Painting.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 25 Feb 2023 15:00:00 - 25 Feb 2023 17:55:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
GWB Pulsar Data Files On :-
GWBH7 : /data5/gpuuser/DDTC261A_data5_25feb2023/*
GWBH8 : /nvme0/gpuuser/DDTC261A_nvme0_25feb2023/*
        /nvme1/gpuuser/DDTC261A_nvme1_25feb2023/*
GWBH9 : /data5/gpuuser/DDTC261B_data5_25feb2023/*
GWBH10 : /nvme0/gpuuser/DDTC261A_nvme0_25feb2023/*
         /nvme1/gpuuser/DDTC261A_nvme1_25feb2023/*
------------GWB Setting---------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 1
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_RF1  	: 500  500
GPU_DDCLO1  	: 0.000000  0.000000
GPU_SB1  	: -1 -1
GCODE1  	: DDTC261A
GPU_RF2  	: 550  550
GPU_DDCLO2  	: 0.000000  0.000000
GPU_SB2  	: 1 1
GCODE2  	: DDTC261B
GPU_CNTRL  	: TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: PA
GPU_BEAM_2  	: VOLTAGE
GPU_BEAM_3  	: PA
GPU_BEAM_4  	: VOLTAGE
GPU_BM_INT  	: 32
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: Voltage Detection
GPU_BEAM_S  	: OFF
GPU_PFB  	: OFF
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 4
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	:	3			# 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
--------------------------------------------------------------------------
# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C02 C05 C08 C10 C12 C14 E02 S02 W01 Total=10
# BEAM-1:175 :: C00 C02 C05 C08 C10 C12 C14 E02 S02 W01 Total=10
# BEAM-2:130 :: C00 C02 C05 C08 C10 C12 C14 E02 S02 W01 Total=10
# BEAM-2:175 :: C00 C02 C05 C08 C10 C12 C14 E02 S02 W01 Total=10
# BEAM-3:130 :: C01 C04 C06 C09 C11 C13 E03 E04 S03 W02 W03 Total=11
# BEAM-3:175 :: C01 C04 C06 C09 C11 C13 E03 E04 S03 W02 W03 Total=11
# BEAM-4:130 :: C01 C04 C06 C09 C11 C13 E03 E04 S03 W02 W03 Total=11
# BEAM-4:175 :: C01 C04 C06 C09 C11 C13 E03 E04 S03 W02 W03 Total=11
--------------------------------------------------------------------------
15:00 : Started settings.
15:40 : \'/data1/gtac/cmd/ddtC261/ddtC261_30Jan2023_1600_cmd.py\' command file started.
16:35 : Noticed that noise ON-OFF commands wrongly placed, so phasing was not done.

Scan no. 6,7,8 and 9 (From 16:07 Hrs to 16:37 Hrs) are bad.

16:40 : Stopped command file.
16:45 : Corrected command file.
16:49 : \'/data1/gtac/cmd/ddtC261/temp_25feb2023.py\' command file started.
17:55 : Stopped command file and observing session over.