GTAC Observation Log

1. Date : 20/09/2015
2. Observation Sr. No. : 8076
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) : Deepak, Nilesh, Pramod, Rupsing, Surender
8. Command File : /odisk/gtac/cmd/chengalu/agc205268.cmd,, /odisk/gtac/cmd/chengalu/ddo143.cmd
9. LTA File : /gsbifrdata/20sep/28_056_20sep2015.lta.1, /gsbifrdata/20sep/28_056_20sep2015.lta
10. LogFlag File : /odisk/online1/logflags/28_056.FLAGS.5, /odisk/online1/logflags/28_056.FLAGS.4

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1404.5835 MHz ,RF2 : 1404.5835 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1340 MHz, ILO2 : 1340MHz , IVLO1 : 64.5835 MHz, IVLO2 : 64.5835 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  : 135.4165
28. LO5 -2  : 169.5835

29. Frequency Parameters (TPA) : 1404.5835 1404.5835 1340 1340 64.5835 64.5835
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
S02 : BLDC
C02 : Servo problem
W04 : MCM 5 timeout

33. Note for Backup :

34. Start and End Time of Obs.(IST): 20 Sep 2015 06:00:00 - 20 Sep 2015 20:00:00

35. ONLINE Machine : Shivneri

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

37. Comments (During Observations) :
06:01 : Started scan on 3c48 for 15mins.
06:20 : Started command file
         /odisk/gtac/cmd/chengalu/agc205268.cmd
09:53 : C00 taken for Painting.
12:41 : Stopped command file.
12:48 : Stated scan on 3C286.
12:48 : W04 started working.
13:00 : Stopped scan and started setting for 1417.54 MHz.
----------------------------------------------------------
Setup Parameters

 Line/Center Frequency : 1417.54				
 Radio Frequency Band  : 1390 [1330-1450]
 First LO    Frequency : 1345
 Maximum IF band width : 18
 [ACQ] Band Width      : 16.6666
 CH#[Start]........... : [0] 1415.4567 
 CH#[Middle].......... : [256] 1417.54 
 CH#[End]............. : [512] 1419.6233  
 CH Width.(KHz)....... : 8.1379  
 Final Band Width..... : 4.1666
 Digital Sub Band(Step): 2  USE
 Band Net sign    .....: 1
 GSB CONFIG LO5   .... : 137.8765 167.1235
 LTA FILE   LO5/LO4 .. : 129.5433 175.4567
 BASE BAND  LO4   .... : 62.1235 62.1235
 TPA : 1407.1235 1407.1235 1345 1345 62.1235 62.1235
----------------------------------------------------------
13:10 : Started scan on 3C286.
13:26 : Started command file.
   /odisk/gtac/cmd/chengalu/ddo143.cmd
16:26 : C00 released for observation.
18:50 : Stopped command file.
18:52 : Started scan on 3C286.
19:08 : Stopped scan and observation session is over.