GTAC Observation Log

1. Date : 04/08/2022
2. Observation Sr. No. : 14458
3. Observer : Anniek Gloudemans, Kenneth Duncan, Aayush Saxena, Huub Rottgering, Yuichi Harikane
4. Observer\'s Email : gloudemans@strw.leidenuniv.nl, duncan@strw.leidenuniv.nl, aayush.saxena@inaf.it, rottgering@strw.leidenuniv.nl, hari@icrr.u-tokyo.ac.jp
5. Project Name : Characterising the spectral properties of the most powerful low-frequency radio quasars in the Epoch of Reionization
6. Project Code : 42_037
7. Operator(s) : Deepak, Sachin, Shilpa, Shriram, Surender
8. Command File : /data1/gtac/cmd/42_037/42_037_09Aug2022_2000_cmd.py,, /data1/gtac/cmd/42_037/42_037_10Aug2022_0000_cmd.py
9. LTA File : /gsbifrdata1/03aug/42_037_03aug2022_gsb.lta.1, /gwbifrdata1/03aug/42_037_03aug2022_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+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 : 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 :27

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
C04 : 130 pol self is zero in GWB
W04 : Taken for maintenance

33. Note for Backup :

34. Start and End Time of Obs.(IST): 03 Aug 2022 20:00:00 - 04 Aug 2022 01:00:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :27

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 400.0000
GPU_FINAL_BW  	: 400
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 2048
GPU_CHAN_NUM  	: 0:2047:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 42_037
GPU_CNTRL  	: 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  	: 4 Bits
GPU_FILRFI  	: Voltage Detection
GPU_BEAM_S  	: OFF
GPU_PFB  	: OFF
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
--------------------------------------------------------------------------
19:40 : Started settings.
19:51 : Started command file,
       \'/data1/gtac/cmd/42_037/42_037_09Aug2022_2000_cmd.py\'
21:05 : C10 taken for maintenance.
21:25 : C10 relased for observation.
23:33 : Stopped command file.

23:34 : No flux calibrator available, 3C48 will rise @ 23:56 Hrs. So started command file with phase calibrator.

23:35 : \'/data1/gtac/cmd/42_037/42_037_10Aug2022_0000_cmd.py\' command file started.
01:00 : Stopped command file and observing session over.