GTAC Observation Log

1. Date : 31/10/2020
2. Observation Sr. No. : 12523
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 : 39_061
7. Operator(s) : Pramod
8. Command File : /odisk/gtac/cmd
9. LTA File : /gsbifrdata/31oct/39_061_31cot2020_gsb.lta, /gwbifrdata1/31oct/39_061_31oct2020_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+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
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 : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :21

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
C08 : All MCM time-out.
C14 : MCM 14 time out.
W01 : MCM-5 continue on 
W03 : FEED jammed, not roatating.
S01 : 130 pol no fringe.
E02 : 130 pol no fringe.
C00 : Tracking problem.
E05 : Applied EL brake

33. Note for Backup :

34. Start and End Time of Obs.(IST): 31 Oct 2020 09:00:00 - 31 Oct 2020 10:00:00

35. ONLINE Machine : TGC

36. No of Antennas Working(Fringing) at the end :21

37. RFI Status :

38. Comments (During Observations) :
GPU_BEAM_3,2:1
GPU_BEAM_2,0:1
GPU_FSTOP,1
GPU_CHAN_MAX,4096
GPU_BEAM_4,0:1
GPU_FILRFI,0
GPU_HOSTS,2
GPU_CNTRL,1
GPU_PFB_TAPS,16
GPU_ENV,1
GPU_CHAN_NUM,0:4095:1
GPU_PFB,0
GPU_MODE,0
GPU_STOKES,2
GPU_BM_INT,4
GPU_DDC,0
GPU_TPA,0
GPU_ACQ_BW,200.0000
GPU_GAINEQ,1
GPU_BEAM_1,3:1
GPU_BEAM_S,0
GPU_EDGE_FRQ,0
GPU_FINAL_BW,1
GPU_LTA,8
GPU_BEAM4_DATASERVER,gwbh10
GPU_BEAM1_DATASERVER,gwbh7
GPU_IFR_DATASERVER,gwbh6
GPU_BEAM2_DATASERVER,gwbh8
GPU_BEAM3_DATASERVER,gwbh9

08:00 : Started set up.
08:45 : Power equalized and phasing done on 1154-350.
09:02 : Started scan on J1227-4853.
10:10 : Stopped scan and observation session is over.