GTAC Observation Log

1. Date : 03/04/2015
2. Observation Sr. No. : 7722
3. Observer : Hyein Yoon, Aeree Chung, Chandreyee Sengupta, O.Ivy Wong, Martin Bureau, Soo-Chang Rey
4. Observer's Email : hiyoon@galaxy.yonsei.ac.kr, achung@yonsei.ac.kr, sengupta.chandreyee@gmail.com, ivy.wong@csiro.au, bureau@astro.ox.ac.uk, screy@cnu.ac.kr
5. Project Name : Environmental Processes in an Infalling Group of Galaxies to the Virgo Cluster
6. Project Code : 25_034
7. Operator(s) : Navnath, Pramod
8. Command File : /odisk/gtac/cmd/25_034/mcg059.cmd
9. LTA File : /gsbifrdata/02apr/25_034_02apr2015.lta
10. LogFlag File : /odisk/online1/logflags/25_034.FLAGS.2

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1405.7667 MHz ,RF2 : 1405.7667 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 60.7667 MHz, IVLO2 : 60.7667 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 : 16.666666 MHz; Step # 
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 139.23
28. LO5 -2  : 165.77

29. Frequency Parameters (TPA) : 1405.7667 1405.7667 1345 1345 60.7667 60.7667
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
W06 : : Feed Cage Painting.
Note : data is afflicted by scintillation 
 :

33. Note for Backup :

34. Start and End Time of Obs.(IST): 02 Apr 2015 20:00:00 - 03 Apr 2015 06:00:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :29

37. Comments (During Observations) :
19:45 : Started setup.
20:03 : Started scan on 3c286 for 15min.
Note : data is afflicted by scintillation 
20:32 : Started cmd file.

     /odisk/gtac/cmd/25_034/mcg059.cmd
21:41 : restarted scan on 3c286 to check scintillation status.
22:01 : restarted cmd file.

Note : Observed scintillation in the data from 20:03 to 02:25.

02:25 : Scintillation disappeared.
05:23 : Stopped command file.
05:31 : Started scan on 3C286.
06:00 : Stopped scan and observation session is over.