GTAC Observation Log

1. Date : 13/05/2017
2. Observation Sr. No. : 9382
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
9. LTA File : /gwbifrdata1/13may/32_032_13may17_gwb_1460.lta.1, /gwbifrdata1/13may/32_032_13may17_gwb_1460.lta, /gwbifrdata1/13may/32_032B_13may17_gwb_500.lta.1, /gwbifrdata1/13may/32_032B_13may17_gwb_500.lta
10. LogFlag File : /odisk/online1/logflags/32_032B.FLAGS.2, /odisk/online1/logflags/32_032.FLAGS.2

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 : OFF
20. Stokes : Total_Intensity
21. Beam - 1 : IA
22. Beam - 2 : PA
23. ACQ BW : 33.333333 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
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 :27

32. Name of Non-Working Antennas (with reason for each) :
C01 : : Low fringe.
C14 : : Mech Work.
S01 : : ABC time-out.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 12 May 2017 23:30:00 - 13 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/12may2017/*
----------------------------------------------------------------------
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 W01 Total=7
# BEAM-1:175 :: C00 C02 C05 C08 C11 E02 W01 Total=7
# BEAM-2:130 :: C03 C04 C06 C09 C10 C12 C13 E03 E04 E05 E06 S02 S04 S06 W02 W03 W04 W05 W06 Total=19
# BEAM-2:175 :: C03 C04 C06 C09 C10 C12 C13 E03 E04 E05 E06 S02 S04 S06 W02 W03 W04 W05 W06 Total=19
# BEAM-3:130 :: Total=0
# BEAM-3:175 :: Total=0
# BEAM-4:130 :: Total=0
# BEAM-4:175 :: Total=0
--------------------------------------------------------------------------
23:35:00 : Started setup.

23:38:42 : Started scan on 3C286 for ~ 0.671088 min.
00:09:04 : Started scan on 3C286 for ~ 1.61061 min.
00:14:38 : Started scan on 1311-222 for ~ 0.939523 min.
00:15:53 : Started scan on 1311-222 for ~ 0.53687 min.
00:18:14 : Started scan on J1455-3330 for ~ 20.1326 min.
00:41:24 : Started scan on 1822-096 for ~ 0.939523 min.
00:42:40 : Started scan on 1822-096 for ~ 0.671088 min.
00:45:29 : Started scan on J1614-2230 for ~ 20.1326 min.
01:14:08 : Started scan on 1609+266 for ~ 0.939523 min.
01:15:23 : Started scan on 1609+266 for ~ 0.53687 min.
01:18:31 : Started scan on J1640+2224 for ~ 20.1326 min.
01:52:00 : C02 Servo time-out removed from GAC.
01:52:06 : Started scan on 1822-096 for ~ 0.939523 min.
01:53:21 : Started scan on 1822-096 for ~ 0.53687 min.
01:56:11 : Started scan on J1713+0747 for ~ 19.9984 min.
02:18:06 : Started scan on 1822-096 for ~ 1.07374 min.
02:19:26 : Started scan on 1822-096 for ~ 0.53687 min.
02:21:42 : Started scan on J1730-2304 for ~ 20.1326 min.
02:43:19 : Started scan on 1822-096 for ~ 1.07374 min.
02:44:38 : Started scan on 1822-096 for ~ 0.53687 min.
02:46:45 : Started scan on J1738+0333 for ~ 20.1326 min.
03:08:41 : Started scan on 1822-096 for ~ 0.939523 min.
03:09:56 : Started scan on 1822-096 for ~ 0.671088 min.
03:12:40 : Started scan on J1857+0943 for ~ 20.1326 min.
03:35:51 : Started scan on 1830-360 for ~ 0.805306 min.
03:36:52 : Subarray-4 controller given problem. Stopped command file.
04:11:25 : Restarted subarray-4. Restarted command file.
04:11:25 : Started scan on 1830-360 for ~ 2.41592 min.
04:15:15 : Started scan on 1830-360 for ~ 2.41592 min.
04:20:06 : Started scan on J1909-3744 for ~ 20.1326 min.
04:56:36 : Started scan on 2202+422 for ~ 0 min.
04:59:01 : Started scan on 2202+422 for ~ 0.939523 min.
05:00:16 : Started scan on 2202+422 for ~ 0.53687 min.
05:02:00 : Started scan on J2302+4442 for ~ 20.1326 min.
05:24:23 : Started scan on 3C48 for ~ 0.939523 min.
05:25:38 : Started scan on 3C48 for ~ 0.53687 min.
05:28:18 : Started scan on J0023+0923 for ~ 0.268435 min.
05:40:26 : Started scan on J0023+0923 for ~ 20.0324 min.
06:00:00 : Stopped scan and observing session over.