GTAC Observation Log

1. Date : 25/05/2017
2. Observation Sr. No. : 9427
3. Observer : Yashwant Gupta, BHAL CHANDRA JOSHI, Nikhil Vijay Naik, Kishalay De, Yogesh Maan, Manjari Bagchi, Jayanta Roy, Gopakumar Achamveedu
4. Observer's Email : ygupta@ncra.tifr.res.in, bcj@ncra.tifr.res.in, naiknikhil27@gmail.com, ugkishalayde@ug.iisc.in, ymaan@ncra.tifr.res.in, manjari.bagchi@gmail.com, jroy@ncra.tifr.res.in, gopu.tifr@gmail.com
5. Project Name : Towards precision pulsar timing with the upgraded GMRT
6. Project Code : 32_032
7. Operator(s) : Surender
8. Command File : /odisk/gtac/cmd/32_030/obs.cmd
9. LTA File : /gsbifrdata1/25may/32_032_25may2017.lta, /gsbifrdata1/25may/32_032B_25may2017.lta, /gwbifrdata2/25may/32_032_25may2017_1460_gwb.lta, /gwbifrdata2/25may/32_032B_25may2017_500_gwb.lta
10. LogFlag File : /odisk/online1/logflags/32_032B.FLAGS.5, /odisk/online1/logflags/32_032.FLAGS.6

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , 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) : 1454 1454 1505 1505 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) :
C06 : Servo time out
C14 : Taken for maintenance
W04 : Gear box problem
W05 : Servo problem
33. Note for Backup :

34. Start and End Time of Obs.(IST): 25 May 2017 01:00:00 - 25 May 2017 06:00:00

35. ONLINE Machine : Lenyadri

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

37. Comments (During Observations) :
Data Recording on: gwbh6,gwbh7 and gwbh8 : /data4/gpuuuser/21may2017/*
----------------------------------------------------------------------
GWB Suba2 : 325 mhz GAB LO=500 Mhz,
    Suba4 : 1420 Mhz GAB LO=1460 Mhz.
    Total Intensity, 200Mhz BW, 2048k Channels, Beam Int 8,PA-PA 
---------------------------------------------------------------------
---------------------------------------------------------------------
# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C02 C05 C08 C11 E02 S01 W01 Total=8
# BEAM-1:175 :: C00 C02 C05 C08 C11 E02 S01 W01 Total=8
# BEAM-2:130 :: C01 C03 C04 C09 C10 C12 C13 E03 E04 E05 E06 S02 S03 S04 S06 W02 W03 W06 Total=18
# BEAM-2:175 :: C01 C03 C04 C09 C10 C12 C13 E03 E04 E05 E06 S02 S03 S04 S06 W02 W03 W06 Total=18
# BEAM-3:130 :: Total=0
# BEAM-3:175 :: Total=0
# BEAM-4:130 :: Total=0
# BEAM-4:175 :: Total=0
------------------------
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01:10:00 : Pointing Done.
------------------------
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01:15:00 : Started set-up.

01:31:07 : Started scan on 3C286 for ~ 1.29744 min.
01:43:53 : Started scan on 3C286 for ~ 3.3107 min.
01:47:34 : Started scan on 3C286 for ~ 3.98179 min.
01:51:43 : Power eq and Phasing done on 3C286.
02:03:42 : Started scan on 1822-096 for ~ 0.0894784 min.
02:05:34 : Started scan on 1822-096 for ~ 1.029 min.
02:06:49 : Started scan on 1822-096 for ~ 0.58161 min.
02:13:48 : Started scan on 1822-096 for ~ 1.029 min.
02:15:03 : Started scan on 1822-096 for ~ 0.715827 min.
02:18:29 : Started scan on J1455-3330 for ~ 20.1326 min.
02:42:03 : Started scan on 1822-096 for ~ 1.16322 min.
02:43:23 : Started scan on 1822-096 for ~ 0.671088 min.
02:45:54 : Started scan on J1614-2230 for ~ 20.2221 min.
03:09:13 : Started scan on 1609+266 for ~ 0.939523 min.
03:10:24 : Started scan on 1609+266 for ~ 0.715827 min.
03:12:12 : Started scan on J1640+2224 for ~ 20.1774 min.
03:35:41 : Started scan on 1822-096 for ~ 1.07374 min.
03:36:56 : Started scan on 1822-096 for ~ 0.671088 min.
03:39:50 : Started scan on J1713+0747 for ~ 20.1326 min.
04:02:14 : Started scan on 1822-096 for ~ 1.20796 min.
04:03:38 : Started scan on 1822-096 for ~ 0.671088 min.
04:05:55 : Started scan on J1730-2304 for ~ 20.2221 min.
04:27:55 : Started scan on 1822-096 for ~ 1.07374 min.
04:29:10 : Started scan on 1822-096 for ~ 0.760566 min.
04:31:21 : Started scan on J1738+0333 for ~ 20.2669 min.
04:53:07 : Started scan on 1822-096 for ~ 1.029 min.
04:54:22 : Started scan on 1822-096 for ~ 0.715827 min.
04:56:43 : Started scan on J1857+0943 for ~ 20.1774 min.
05:19:30 : Started scan on 1830-360 for ~ 0.939523 min.
05:20:41 : Started scan on 1830-360 for ~ 0.715827 min.
05:22:24 : Started scan on J1909-3744 for ~ 20.2669 min.
05:49:11 : Started scan on 2202+422 for ~ 1.029 min.
05:50:26 : Started scan on 2202+422 for ~ 0.715827 min.
05:52:23 : Started scan on J2302+4442 for ~ 20.2221 min.
06:14:28 : Started scan on 3C48 for ~ 1.11848 min.
06:15:48 : Started scan on 3C48 for ~ 0.671088 min.
06:29:06 : Started scan on J0023+0923 for ~ 20.614 min.
06:50:00 : Stopped scan and observing session over.