GTAC Observation Log

1. Date : 21/05/2023
2. Observation Sr. No. : 15429
3. Observer : Ramananda Santra, Rashi Jain, Ruta Kale
4. Observer\'s Email : ramananda1999@gmail.com, rashijain0102@gmail.com, ruta@ncra.tifr.res.in
5. Project Name : Deep uGMRT follow up of the X-ray luminous cluster A2163
6. Project Code : 44_084
7. Operator(s) : Navnath, Sachin, Shriram
8. Command File : /data1/gtac/cmd/44_084/44_084_20May2023_2000_cmd.py
9. LTA File : /gwbifrdata1/20may/44_084_20may2023_b3_gwb.lta.1, /gwbifrdata1/20may/44_084_20may2023_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 :30

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

 
33. Note for Backup :

34. Start and End Time of Obs.(IST): 20 May 2023 20:00:00 - 21 May 2023 06:12:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
******************************************************************* 
Important Note for Observer:
The refurbishment work of the W02 antenna reflector surface is 
currently in progress. The refurbishment of the inner sectors 
will commence from 16th May 2023 onwards. Please note that this 
ongoing work may affect the sensitivity of the antenna and could 
also alter the primary beam pattern depending on the size of the
holes present on the surface. We advise exercising caution in 
using the antenna, particularly if your targets are extended or 
if you\'re using a wide field. 
******************************************************************* 

		
------------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  	: 470  470
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 44_084
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_STATUS = ON/OFF
--------------------------------
20:00:00 Started setup.
20:15:00 : PPS mismatch problem occurred.
20:30:00 : problem got resolved after restarting GWB chain.
20:35:00 : Started cmd file.
          /data1/gtac/cmd/44_084/44_084_20May2023_2000_cmd.py
00:46 - 00:55 : MuOS 4 satellite RFI. Stopped scan and moved to Phase cal.
02:58 - 03:05 : MuOS 4 satellite RFI.
05:36 : Target source A2163 below horizon. Moved to phase cal.
05:37 : Started scan on 1822-096 for ~ 5.27923 min.
05:51 : Started scan on 3C48 for ~ 20.04757 min.
06:12 :  Command file stopped and observation session over.