GTAC Observation Log

1. Date : 12/02/2023
2. Observation Sr. No. : 15109
3. Observer : Netai Bhukta, Sabyasachi Pal, Sushanta Kumar Mondal
4. Observer\'s Email : nbhukta99@gmail.com, sabya.pal@gmail.com, susnautiitd@gmail.com
5. Project Name : GMRT multi-frequency observations of double double radio galaxies
6. Project Code : 43_116
7. Operator(s) : Rupsing
8. Command File : /data1/gtac/cmd/43_116/43_116_12Feb2023_1600_cmd.py
9. LTA File : /gsbifrdata/12feb/43_116_12feb2023_gsb.lta.1, /gwbifrdata1/12feb/43_116_12feb2023_gwb.lta.1, 
10. LogFlag File :  

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 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) : 591 591 540 540 51 51
30. Integration Time : 8.053 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): 12 Feb 2023 16:00:00 - 12 Feb 2023 21:00:00

35. ONLINE Machine : TGC

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

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_SIDEBAND  	: 1 1
GPU_RF3  	: 550 550
GPU_DDCLO3  	: 0.000000  0.000000
GPU_SB3  	: 1 1
GCODE3  	: 43_116
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
----------------------------------------------------------------------
16:15 : Started command file.
----------------------------------------------------------------------
17:40 : Stopped command file due to TGC hung(Batch restarted)
----------------------------------------------------------------------
14:42 : Scan No.# 6 # is bad.
---------------------------------------------------------------------
17:50 : S01 released for observation.
---------------------------------------------------------------------
21:49 : Restarted command file.
----------------------------------------------------------------------
20:00 : Phase cal 1021+219 was not rise(rise time 20:12)
----------------------------------------------------------------------
20:05 : Restarted command file without phase cal.
---------------------------------------------------------------------
20:32 : Scintillation has seen on phase cal 1021+219 
---------------------------------------------------------------------
21:15 : Stopped command file and observation closed.