GTAC Observation Log

1. Date : 26/11/2021
2. Observation Sr. No. : 13689
3. Observer : Shyam Sunder, Jayanta Roy, Bhaswati Bhattacharyya, Shubham Singh
4. Observer\'s Email : ssunder@ncra.tifr.res.in, jroy@ncra.tifr.res.in, bhaswati@ncra.tifr.res.in, ssingh@ncra.tifr.res.in
5. Project Name : Localisation of pulsars discovered in the GHRSS survey
6. Project Code : 41_095
7. Operator(s) : Nilesh
8. Command File : /odisk/gtac/cmd 
9. LTA File : /gwbifrdata/26nov/41_095_26nov2021_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 : OFF
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 :23

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
C01 : GAB not set.
C05 : GAB not set.
C10 : Low fringe.
C12 : FE problem.
E06 : CH1 - very Low fringe.
S02 : GAB not set.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 26 Nov 2021 05:00:00 - 26 Nov 2021 07:15:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :23

37. RFI Status :

38. Comments (During Observations) :
05:00 : TGC system problem.

05:25 : TGC Started working.
05:30 : Started pointing at Band3.

05:55 : GSB Power eq at 300 counts and halted, started GWB.


------------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  	: 41_095
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: IA
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 4
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 Non-working antennas :

C03 : Mechanical Work.
C01 : GAB not set.
C05 : GAB not set.
C10 : Low fringe.
C12 : FE problem.
E06 : CH1 - very Low fringe.
S02 : GAB not set.

GSB Non-working antennas :

C03 : Mechanical Work.
C10 : Low fringe.
C12 : FE problem.

# GWB GAC configuration is as follows : 
# BEAM-2:130 :: C00 C02 C04 C06 C08 C09 C11 C13 C14 E02 E03 E04 E05 S01 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=23
# BEAM-2:175 :: C00 C02 C04 C06 C08 C09 C11 C13 C14 E02 E03 E04 E05 S01 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=23

Backend : GSB ; PROJECT : 41_095 ; TPA : 306 306 255 255 51 51 
Backend : GWB ; PROJECT : 41_095 ; TPA : 500 500 -500 -500 0 0

Pulsar data files = gpuuser@gwbh8:/data8/gpuuser/41_095_26nov2021_data8/*

06:05:49 : Started scan on 1154-350 for ~ 5.50292 min.
06:16:20 : Started scan on HR_1023-43 for ~ 60 min.
07:15 : Stopped scan and observation session is over.