GTAC Observation Log

1. Date : 19/11/2019
2. Observation Sr. No. : 11602
3. Observer : Gerrit Schellenberger, Jan M. Vrtilek, Laurence Paul David, Ewan O`Sullivan, Dharam Vir Lal, Stefano Ettori, Lorenzo Lovisari, Somak Raychaudhury, Giacintucci Simona, Konstantinos Kolokythas
4. Observer's Email : gerrit.schellenberger@cfa.harvard.edu, jvrtilek@cfa.harvard.edu, ldavid@head.cfa.harvard.edu, eosullivan@cfa.harvard.edu, dharam@ncra.tifr.res.in, stefano.ettori@oabo.inaf.it, lorenzo.lovisari@cfa.harvard.edu, somak@iucaa.in, simona.giacintucci@nrl.navy.mil, kkolok@iucaa.in
5. Project Name : Abell 2108: the lowest-mass system with a radio relic?
6. Project Code : 37_018
7. Operator(s) : Pramod, Surender
8. Command File : /odisk/gtac/cmd/37_018/obs.cmd
9. LTA File : /gsbifrdata1/19nov/37_018_19nov2019_gsb.lta, /gwbifrdata1/19nov/37_018_19nov2019_gwb.lta
10. LogFlag File : /odisk/online1/logflags/37_018.FLAGS

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
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Full_Stokes
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 : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :26

32. Name of Non-Working Antennas (with reason for each) :
C04 : : Taken for Mech Work.
C08 : : Servo Problem.
C11 : : Taken for Mech Work.
W03 : : FE Problem.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 19 Nov 2019 10:00:00 - 19 Nov 2019 14:10:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :26

37. RFI Status :

38. Comments (During Observations) :
NOTE : Switch TGC to old online system duo to RFI filtering was not enabled in TGC.

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200.0000
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 4096
GPU_CHAN_NUM  	: 0:4095:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 500  500
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 37_018
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 4
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: Voltage Detection
GPU_BEAM_S  	: OFF
------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_STATUS = ON/OFF
--------------------------------
10:00:00 : Started set-up.
10:29:25 : Started scan on 3C286 for ~ 8.3886 min.
10:44:31 : Started command file.
           /odisk/gtac/cmd/37_018/obs.cmd
13:56 : Stopped command file.
13:57 : Started scan on 3C286.
14:07 : Stopped scan and observation session is over.