GTAC Observation Log

1. Date : 22/08/2015
2. Observation Sr. No. : 8010
3. Observer : Jayaram Narayanan Chengalur, Igor Karachentsev
4. Observer's Email : chengalur@ncra.tifr.res.in, ikar@sao.ru
5. Project Name : HI in the most gas rich galaxies in the local volume
6. Project Code : 28_056
7. Operator(s) : Navnath, Nilesh, Pramod
8. Command File : /odisk/gtac/cmd/chengalu/lvj0926.cmd
9. LTA File : /gsbifrdata1/22aug/28_056_22aug2015.lta
10. LogFlag File : /odisk/online1/logflags/28_056.FLAGS.2

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1407.5835 MHz ,RF2 : 1407.5835 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 62.5835 MHz, IVLO2 : 62.5835 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 MHz,ON

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 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 16.666666 MHz
24. Final BW : 4 MHz; Step # 2
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 137.4165
28. LO5 -2  : 167.5835

29. Frequency Parameters (TPA) : 1407.5835 1407.5835 1345 1345 62.5835 62.5835
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
E02 : Taken for BLDC.
C02 : L band feed replacement.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 22 Aug 2015 06:00:00 - 22 Aug 2015 17:00:00

35. ONLINE Machine : Shivneri

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

37. Comments (During Observations) :
06:15 : Started set up.
06:34 : Started scan on 3C147.
06:44 : Stopped scan and stared scan on LVJ0926+3343.
07:06 : Stopped scan and started command file.

     /odisk/gtac/cmd/chengalu/lvj0926.cmd

08:44 : W05 - servo problem.
12:56 : High wind speed, observation suspended, parked array. 
16:55 : Due to high wind  half observation session got affected.
17:00 : Observation session closed.