GTAC Observation Log

1. Date : 23/09/2017
2. Observation Sr. No. : 9776
3. Observer : Peter Kamphuis, Koshy George, O.Ivy Wong, Chandreyee Sengupta, Gyula I.G. Józsa, Kevin Schawinski
4. Observer's Email : peterkamphuisastronomy@gmail.com, koshy@iiap.res.in, ivy.wong@uwa.edu.au, sengupta.chandreyee@gmail.com, gigjozsast@gmail.com, kevin.schawinski@phys.ethz.ch
5. Project Name : Probing the cause of rapid star formation changes in early type galaxies
6. Project Code : 32_042
7. Operator(s) : Pramod, Rupsing, Surender
8. Command File : /odisk/gtac/cmd/32_042/23_24sep17/obs_j0754\+25.cmd
9. LTA File : /gsbifrdata/23sep/32_042_23sep2017.lta.1, /gsbifrdata/23sep/32_042_23sep2017.lta
10. LogFlag File : /odisk/online1/logflags/32_042.FLAGS.3

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1355 MHz ,RF2 : 1355 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1295 MHz, ILO2 : 1295MHz , IVLO1 : 60 MHz, IVLO2 : 60 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 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 : 0 MHz; Step # 0
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 140
28. LO5 -2  : 165

29. Frequency Parameters (TPA) : 1355 1355 1295 1295 60 60
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 : Servo problem.
S06 : Servo problem.
C09 : 175 pol Amp Fluction.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 23 Sep 2017 03:00:00 - 23 Sep 2017 13:00:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :27

37. Comments (During Observations) :
03:15 : Started scan on 3C48.
03:28 : Stopped scan.
03:30 : Started command file.
===========================================================================
03:30 : Subac4 hung(Not getting commands).
---------------------------------------------------------------------------
03:40 : Still Not working subac4.  
---------------------------------------------------------------------------
03:55 : Restarted online
===========================================================================
04:02 : Started scan on 3C48
04:13 : Stopped scan.
04:18 : Started command file.
10:00 : W03 Taken for Mech Work.
10:02 : C01 Released for observation.
12:42 : Stopped command file.
12:48 : Started scan on 3C286.
13:00 : Stopped scan and observing session over.