GTAC Observation Log 

1. Date : 2/7/2014
2. Observation Sr. No. : 7202
3. Observer : Jayanta Roy,Maura Ann McLaughlin,Scott M. Ransom,Bhaswati Bhattacharyya,Duncan Ross Lorimer,Lina Levin
4. Observer's Email : jroy@ncra.tifr.res.in,maura.mclaughlin@mail.wvu.edu,sransom@nrao.edu,bhaswati@ncra.tifr.res.in,Duncan.Lorimer@mail.wvu.edu,lina.s.levin@gmail.com
5. Project Name : Coherently dedispersed timing studies at the GMRT for IPTA MSPs
6. Project Code : 26_039
7. Operator(s) : Navanath,Pramod,Rupsingh,Sachin,Shilpa,
8. Command File : /odisk/gtac/cmd/jroy/26_039_2jul.cmd
9. LTA File : /gsbifrdata1/02jul/26_039_02jul2014_610.lta,/gsbifrdata1/02jul/26_039_02jul2014_325.lta,/gsbifrdata1/02jul/26_039_02jul2014_610.lta.1,/gsbifrdata1/02jul/26_039_02jul2014_325.lta.1,/gsbifrdata1/02jul/26_039_02jul2014_325.lta.2,/gsbifrdata1/02jul/26_039_02jul2014_610.lta.2,/gsbifrdata1/02jul/26_039_02jul2014_610.lta.3,/gsbifrdata1/02jul/26_039_02jul2014_325.lta.3,/gsbifrdata1/02jul/26_039_02jul14_610.lta,/gsbifrdata1/02jul/26_039_02jul14_306.lta,
10. LogFlag File : /odisk/online1/logflags/26_039.FLAGS,

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 : 540 MHz , 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 Mode : Realtime 
15. GSB LTA : 8 
16. GSB CTRL : ONLINE 
17. GSB Fstop : ON 
18. GAIN EQ : OFF 
19. Stokes : TotIntensity
20. Beam - 1 : OFF
21. Beam - 2 : V
22. ACQ BW : 33.33 MHz
23. Final BW : 33.333333 MHz; Step # 0
24. Maximum Channels : 256 
25. Channel Numbers : 0:255:1 
26. LO5 -1  : 149.00 
27. LO5 -2  : 156.00 

28. Frequency Parameters (TPA) : 591 591 540 540 51 51.
29. Integration Time : 16.106112 Sec.
30. No of Antennas Working(Fringing) at the begining :28

31. Name of Non-Working Antennas (with reason for each) :
C12 : Servo in off mode.
S02 : No feed.
32. Note for Backup :

33. Start and End Time of Obs.(IST): 22:30 - 06:16

34. ONLINE Machine : Shivneri

35. No of Antennas Working(Fringing) at the end :28

36. Comments (During Observations) :
# sub 2 # C00 C05 C08 C09 C10 C11 C12 C13 C14 W02 W03 W04 E02 E03 S02 S03 S04
ante 17 7 19 24 4 12 9 2 11 10 13 14 15 17 18 27 28 29
cp 0;defs 2;subar 2
tpa 591 591 540 540 51 51
-----------------------------------------------------------------------------
# sub 4 # C01 C02 C03 C04 C06 W01 S01
ante 7 6 5 1 3 20 8 26
cp 0;defs 4;subar 4
tpa 306 306 255 255 51 51
-----------------------------------------------------------------------------
22:30 : Started settings.
23:00 : Power equilised on 1830-360 @ 300counts.
        User2 having a problem, so restarted online.
00:08 : Phasing done on 1830-360.
00:14 : Started command file.
02:45 : Due to the buffer loss, rebooted GSB.
03:29 : Restarted command file.
06:16 : Stopped command file and observing session over.