GTAC Observation Log

1. Date : 15/02/2023
2. Observation Sr. No. : 15122
3. Observer : Rashmi Sagar, Abhirup Datta, Akriti Sinha, Arnab Chakraborty, Nirupam Roy, Kanan Kumar Datta, Prasun Dutta, samir choudhuri
4. Observer\'s Email : phd2101121003@iiti.ac.in, Abhirup.Datta@iiti.ac.in, sinha.akriti44@gmail.com, arnab.phy.personal@gmail.com, roy.nirupam@gmail.com, kanan.physics@presiuniv.ac.in, pdutta.phy@itbhu.ac.in, samir.svc@gmail.com
5. Project Name : Characterising Foregrounds in 21cm Cosmology Observations with the uGMRT Band-2: Phase 2
6. Project Code : 43_077
7. Operator(s) : Deepak, Pramod, Surender
8. Command File : /data1/gtac/cmd/43_077/43_077_15Feb2023_0100_cmd.py
9. LTA File : /gsbifrdata1/15feb/43_077_15feb2023_gsb.lta, /gwbifrdata1/15feb/43_077_15feb2023_gwb.lta
10. LogFlag File :  

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 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+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 : 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 : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :30

32. Name of Non-Working Antennas (with reason for each) :


33. Note for Backup :

34. Start and End Time of Obs.(IST): 15 Feb 2023 01:00:00 - 15 Feb 2023 08:00:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :30

37. RFI Status :

38. Comments (During Observations) :
Note : Observed intermittent strong RFI.
------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
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  	: 43_077
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  	: 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
--------------------------------
01:00:34 : Started set-up.
01:31:34 : Started cmd file.
          /data1/gtac/cmd/43_077/43_077_15Feb2023_0100_cmd.py

08:10 : Stopped command file and observation session is over.