GTAC Observation Log

1. Date : 07/12/2020
2. Observation Sr. No. : 12648
3. Observer : Jayanta Roy 
Bhaswati Bhattacharyya 
Lina Levin 
Ben Stappers 
Paul Ray 
Shyam Sunder 

4. Observer\'s Email : jroy@ncra.tifr.res.in
5. Project Name : Multi-frequency timing of millisecond \\r\\npulsars with the GMRT \\r\\n
6. Project Code : 39_060
7. Operator(s) : Navnath
8. Command File : /odisk/gtac/cmd/jroy/39_060_7dec.cmd
9. LTA File : /gsbifrdata1/07dec/39_060_07dec2020_band5_gsb.lta, /gwbifrdata1/07dec/39_060_07dec2020_band5_gwb.lta
10. LogFlag File : /odisk/online1/logflags/39_060.FLAGS.12

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , 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 : 16.666666 MHz
24. Final BW : 4 MHz; Step # 1
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 136.8499
28. LO5 -2  : 168.1501

29. Frequency Parameters (TPA) : 1371 1371 1320 1320 51 51
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
S01 : No fringe 1420 MHz.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 07 Dec 2020 07:00:00 - 07 Dec 2020 09:00:00

35. ONLINE Machine : Shivneri

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

37. RFI Status :

38. Comments (During Observations) :
::::::::::::::
setup :-
1460 MHz LO, 400 MHz BW, LSB, 4K chann, Beam modes are: off, off, off, PA; beam_int=8 , LTA=4
::::::::::::::
gwb_gac.dat
::::::::::::::
# GWB GAC configuration is as follows : 
# BEAM-4:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 S02 S03 S04 W01 W02 W03 W04 W05 Total=25
# BEAM-4:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 S02 S03 S04 W01 W02 W03 W04 W05 Total=25


07:00:00 : Started setup.
07:10:00 : Power eq done on 1154-350.
07:14:29 : Started scan on 1154-350 for ~ 1.07374 min.
07:17:41 : Started scan on 1154-350 for ~ 1.14085 min.
07:20:00 : Phasing done and GAC Configured.
         : Started cmd file.

    /odisk/gtac/cmd/jroy/39_060_7dec.cmd

07:21:28 : Started scan on J1207-5050 for ~ 60.3979 min.
08:24:24 : Started scan on 1526-138 for ~ 1.14085 min.
08:25:42 : Started scan on 1526-138 for ~ 0.939523 min.
08:28:51 : Started scan on J1640+2224 for ~ 15.435 min.
08:45:12 : Started scan on J1713+0747 for ~ 16.1061 min.
09:00:00 : observation session over.
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