GTAC Observation Log

1. Date : 09/09/2023
2. Observation Sr. No. : 15858
3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur, Sanjay S. Kudale, Tyrel J. Johnson, Matthew Kerr, Patrick Weltevrede, Paulo Cesar Freire
4. Observer\'s Email : jroy@ncra.tifr.res.in, paul.ray@nrl.navy.mil, bhaswati@ncra.tifr.res.in, Ben.Stappers@manchester.ac.uk, chengalur@ncra.tifr.res.in, ksanjay@gmrt.ncra.tifr.res.in, tyrel.j.johnson@gmail.com, matthew.kerr@gmail.com, Patrick.Weltevrede@manchester.ac.uk, pfreire@mpifr-bonn.mpg.de
5. Project Name : Long-term timing follow-up for the third transitional redback millisecond pulsar J1227-4853
6. Project Code : 44_067
7. Operator(s) : Rupsing, Sachin, Shilpa
8. Command File : /data1/gtac/cmd/44_067/44_067_09Sep2023_1300_cmd.py
9. LTA File : /gwbifrdata/09sep/44_067_09sep2023_b4_gwb.lta
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+12 dB, 32 MHz,ON, IF-CH2 : 4+12 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) : 591 591 540 540 51 51
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :26

32. Name of Non-Working Antennas (with reason for each) :
C08 : FPS problem.
C10 : Low fringe.
E02 : Low fringe.
S03 : Strong RFI lines.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 09 Sep 2023 13:00:00 - 09 Sep 2023 14:05:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------------------------------------------------
GPU_MODE  	: Realtime
GPU_LTA  	: 8
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  	: 550 550 
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: 44_067
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: VOLTAGE
GPU_BEAM_3  	: PA
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 GAC configuration is as follows : 

# BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C09 C11 C12 C13 C14 E03 E04 S01 S02 S04 W01 W02 W03 W04 Total=21
# BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C09 C11 C12 C13 C14 E03 E04 S01 S02 S04 W01 W02 W03 W04 Total=21
# BEAM-3:130 :: C00 C01 C02 C03 C04 C05 C06 C09 C11 C12 C13 C14 E03 E04 S01 S02 S04 W01 W02 W03 W04 Total=21
# BEAM-3:175 :: C00 C01 C02 C03 C04 C05 C06 C09 C11 C12 C13 C14 E03 E04 S01 S02 S04 W01 W02 W03 W04 Total=21
--------------------------------------------------------------------------
13:25 : Started command file.
Phasing was okay.
13:29 : Observed that antennas were not tracking on pulsar.
Tried to track antennas on source but could not succeed.
Later we know that there was typo in source name in \'.csv\' file.
14:05 : Stopped command file and observation session over.