GTAC Observation Log

1. Date : 14/01/2023
2. Observation Sr. No. : 15009
3. Observer : Shubham Singh, Jayanta Roy, Shyam Sunder, Bhaswati Bhattacharyya
4. Observer\'s Email : ssingh@ncra.tifr.res.in, jroy@ncra.tifr.res.in, ssunder@ncra.tifr.res.in, bhaswati.bhattacharyya78@gmail.com
5. Project Name : Timing follow-up of long period pulsars discovered in the GHRSS Survey
6. Project Code : 43_111
7. Operator(s) : Deepak, Shriram, Surender
8. Command File : /data1/gtac/cmd/43_111/43_111_14jan2023_0900_cmd.py
9. LTA File : /gwbifrdata2/14jan/43_111_14jan2023_gwb.lta.1, /gwbifrdata2/14jan/43_111_14jan2023_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 : 2.0132 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): 14 Jan 2023 09:00:00 - 14 Jan 2023 11:05:00

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  	: 4096
GPU_CHAN_NUM  	: 0:4095:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 500  500
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 43_111
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: IA
GPU_BEAM_2  	: PA
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 16
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 8 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	:	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 = ON/OFF
--------------------------------------------------------------------------
# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=30
# BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=30
# BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=14
# BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=14
--------------------------------------------------------------------------
09:00 : Started settings.
09:20 : Phasing done on 1830-360 
09:22 : Started command file,
        \'/data1/gtac/cmd/43_111/43_111_14jan2023_0900_cmd.py\'
09:42 : Strong RFI at C04. Removed from GAC. restarted scan.
10:10 : C04 added back to GAC.
11:05 : Command file stopped and observation session over.