GTAC Observation Log

1. Date : 26/11/2022
2. Observation Sr. No. : 14811
3. Observer : Shubham Singh, Jayanta Roy, Shyam Sunder
4. Observer\'s Email : ssingh@ncra.tifr.res.in, jroy@ncra.tifr.res.in, ssunder@ncra.tifr.res.in
5. Project Name : Investigating the broadband nature of nulling in a newly localised GHRSS pulsar
6. Project Code : ddtC249
7. Operator(s) : Sachin, Shilpa, Shriram
8. Command File : /data1/gtac/cmd/ddtc249/ddtC249_25Nov2022_0600_cmd.py
9. LTA File : /gwbifrdata1/25nov/ddtc249b_25nov2022_subar2_gwb.lta, /gwbifrdata1/25nov/ddtc249b_25nov2022_sub2_gwb.lta, /gwbifrdata1/25nov/ddtc249a_25nov2022_subar1_gwb.lta, /gwbifrdata1/25nov/ddtc249a_25nov2022_sub1_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 : 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 : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
C11 : LMC down.

33. Note for Backup :LTA files were not listed and backed up in previous Observation Log. So re sending it.


34. Start and End Time of Obs.(IST): 25 Nov 2022 05:30:00 - 25 Nov 2022 09:00:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :28

37. RFI Status :

38. Comments (During Observations) :
GWB Pulsar Data Files On :-
GWBH8 : /data6/gpuuser/DDT249A_25nov2022_data6/*
GWBH9 : /data4/gpuuser/DDT249B_25nov2022_data4/*
--------------------------------------------------------------------------
05:30 : Started settings.

------------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_RF1  	: 500  500
GPU_DDCLO1  	: 0.000000  0.000000
GPU_SB1  	: 1 1
GCODE1  	: DDT249A
GPU_RF2  	: 550  550
GPU_DDCLO2  	: 0.000000  0.000000
GPU_SB2  	: 1 1
GCODE2  	: DDT249B
GPU_CNTRL  	: TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: PA
GPU_BEAM_3  	: PA
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 16
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: RFI Filterring OFF
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 GAC configuration is as follows : 

# BEAM-2:130 :: C00 C01 C04 C05 C06 C12 C13 C14 S01 W01 Total=10
# BEAM-2:175 :: C00 C01 C04 C05 C06 C12 C13 C14 S01 W01 Total=10
# BEAM-3:130 :: C02 C08 C09 C10 E02 E03 E04 S02 S03 S04 W02 W03 W04 Total=13
# BEAM-3:175 :: C02 C08 C09 C10 E02 E03 E04 S02 S03 S04 W02 W03 W04 Total=13
--------------------------------------------------------------------------
Beam scaling - 2.0
--------------------------------------------------------------------------
06:00 : Setup changed to total intensity mode.
06:20-06:45 : Edited command file.
06:50 : Phasing done on 1154-350.
06:52 : Started command file,
        \'/data1/gtac/cmd/ddtc249/ddtC249_25Nov2022_0600_cmd.py\' 
07:35 : Error in command file, automatically stopped pulsar recording.
07:49 : Restarted pulsar recording.
09:00 : Stopped command file and observing session over.