GTAC Observation Log

1. Date : 07/05/2017
2. Observation Sr. No. : 9359
3. Observer : Abhirup Datta, Nirupam Roy, Prasun Dutta, samir choudhuri, Somnath Bharadwaj, Huib T Intema, Saiyad Ali, Jayaram Narayanan Chengalur, Kanan Kumar Datta, Abhik Ghosh, TirthankarRoy Choudhury, Suman Majumdar, Shiv Sethi, Srijita Pal, Preetha Saha, Arnab Chakraborty, Madhurima Choudhury
4. Observer's Email : Abhirup.Datta@iiti.ac.in, roy.nirupam@gmail.com, pdutta.phy@itbhu.ac.in, samir.svc@gmail.com, somnath@phy.iitkgp.ernet.in, intema@strw.leidenuniv.nl, saiyad@phys.jdvu.ac.in, chengalur@ncra.tifr.res.in, kanan.physics@presiuniv.ac.in, ghosh@astro.rug.nl, tirth@hri.res.in, s.majumdar@imperial.ac.uk, shiv.sethi09@gmail.com, srijitapal.phy@gmail.com, preethasaha06@gmail.com, phd1601121009@iiti.ac.in, phd1601121002@iiti.ac.in
5. Project Name : Characterizing Foregrounds in 21cm Cosmology Observations: Pilot Study with the uGMRT at 250-500 MHz
6. Project Code : 32_120
7. Operator(s) : Rupsing
8. Command File : /odisk/gtac/cmd/32_120/obs.cmd
9. LTA File : /gsbifrdata/07may/32_120_07may2017.lta, /gwbifrdata1/07may/32_120_07may2017.lta
10. LogFlag File : /odisk/online1/logflags/32_120.FLAGS.3, /odisk/online1/logflags/32_120.FLAGS.2

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 10+12 dB, 32 MHz,ON, IF-CH2 : 10+12 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) : 306 306 255 255 51 51
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :24

32. Name of Non-Working Antennas (with reason for each) :
C01 : Servo problem.
C08 : ABC time out.
C11 : EL axis Encoder checking.
C14 : Structural repair.
W05 : Strong RFI lines.
C02 : Strong RFI line.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 07 May 2017 01:10:00 - 07 May 2017 07:00:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :25

37. Comments (During Observations) :
01:21 : Started scan on 3C286.
01:38 : Stopped scan.
01:45 : Started command file.
04:12 : Stopped command file
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04:13 : C08 started working
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04:13 : Started scan on 3C286.
04:28 : Stopped scan.
04:30 : Restarted command file.
06:42 : Stopped command file.
06:46 : Started scan on 3C48.
06:42 : Stopped command file.
06:46 : Started scan on 3C48.
07:00 : Stopped scan and observation session over.