GTAC Observation Log

1. Date : 14/03/2015
2. Observation Sr. No. : 7673
3. Observer : Megan DeCesar, Scott M. Ransom, Jayanta Roy, Bhaswati Bhattacharyya, David Kaplan, Paul Ray
4. Observer's Email : megandecesar@gmail.com, sransom@nrao.edu, jroy@ncra.tifr.res.in, bhaswati.bhattacharyya@manchester.ac.uk, dkaplan@kitp.ucsb.edu, paul.ray@nrl.navy.mil
5. Project Name : GMRT Observations of the Highly Eccentric Binary Millisecond Pulsar in NGC 6652
6. Project Code : 27_056
7. Operator(s) : Nilesh
8. Command File : /odisk/gtac/cmd/jroy/27_056_14mar.cmd
9. LTA File : /gsbifrdata/14mar/27_056_14mar2014.lta
10. LogFlag File : /odisk/online1/logflags/27_056.FLAGS.5

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 32 MHz,OFF

GSB SETTINGS :

14. GSB Host : gsbm1
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 : PA
22. Beam - 2 : PA
23. ACQ BW : 33.333333 MHz
24. Final BW : 33.333333 MHz; Step # 
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 591 591 540 540 51 51
30. Integration Time : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :21

32. Name of Non-Working Antennas (with reason for each) :
W05 : : Feed Cage Painting.
W06 : : Frequently getting Reset.
S04 : : ABC time out.
S06 : : NO fringe
C02 : : No fringe@130 pol.
C10 : : No feed@235MHz.
W01 : : No feed@235MHz.
W04 : : Low fringe@175 pol
W03 : : MCM 5 time out.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 14 Mar 2015 10:00:00 - 14 Mar 2015 12:00:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :21

37. Comments (During Observations) :
10:00 : Started settings.
10:15 : Started power eq @ 300 counts on 1822-06
10:30 : Started phasing on 1822-096.
10:36 : Started command file.
10:40 : Intermittent BUFFER LOSS.
10:44 : Reconfigured GAC, and re-started scan.
10:50 : CONTINUOUS BUFFER LOSS observaed at GSB ACQ.
        searched for processes and jobs in background but nothing found.
11:12 : Stopped observation, Due to BUFFER LOSS.