GTAC Observation Log

1. Date : 10/02/2024
2. Observation Sr. No. : 16370
3. Observer : Ramananda Santra
4. Observer\'s Email : ramananda1999@gmail.com
5. Project Name : Waves from the Abyss: Exploring Abell S1063 at Low frequencies
6. Project Code : 45_053
7. Operator(s) : Deepak, Shriram
8. Command File : /odisk/gtac/cmd/45_053/45_053_10Feb2024_1000_cmd.py
9. LTA File : /gsbifrdata/10feb/45_053_10feb2024_b3_gsb.lta, /gwbifrdata1/10feb/45_053_10feb2024_b3_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 : 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) : 306 306 255 255 51 51
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
C14 : released for servo maintenance
S02 : Mechanical work.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 10 Feb 2024 10:00:00 - 10 Feb 2024 17:00:00

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_FILRFI  	: Voltage Detection
--------------------------------


------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
--------------------------------


10:00 : Started setup.
10:15 : Target is source is rising at 11:26.
10:30 : Flux calibrator is changed from 3C48 to 3C468.1, as per user request.
11:00 : Started command file.
12:30 : W03 TGC problem.
13:00 : C14 released for observation.
17:04 : Command file stopped and observation session over.