GTAC Observation Log 

1. Date : 26/10/2013
2. Observation Sr. No. : 6750
3. Observer : Ruta Kale,Julius MaxFerdinand Donnert,Tiziana Venturi,Daniele Dallacasa,Rossella Cassano,Gianfranco Brunetti
4. Observer's Email : rkale@ira.inaf.it,donnert@ira.inaf.it,tventuri@ira.inaf.it,daniele.dallacasa@unibo.it,rcassano@ira.inaf.it,brunetti@ira.inaf.it
5. Project Name : Constraining physics of particle acceleration in merging galaxy  clusters: the textbook case of `El Gordo'
6. Project Code : 25_023
7. Operator(s) : Deepak,Pramod,
8. Command File : /odisk/gtac/cmd/ruta/25_023/25_023_elgordo.cmd
9. LTA File : /gsbifrdata/26oct/25_023_26oct2013.lta,
10. LogFlag File : /odisk/online1/logflags/25_023.FLAGS.1,

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255 MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON

GSB SETTINGS :

14. GSB Mode : Realtime 
15. GSB LTA : 8 
16. GSB CTRL : ONLINE 
17. GSB Fstop : ON 
18. GAIN EQ : ON 
19. Stokes : TotIntensity
20. Beam - 1 : OFF
21. Beam - 2 : OFF
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) : 306 306 255 255 51 51.
29. Integration Time : 16.106112 Sec.
30. No of Antennas Working(Fringing) at the begining :30

31. Name of Non-Working Antennas (with reason for each) :

32. Note for Backup :

33. Start and End Time of Obs.(IST): 21:05 - 02:00

34. ONLINE Machine : Lenyadri

35. No of Antennas Working(Fringing) at the end :30

36. Comments (During Observations) :
21:05 : Started set up.
21:18 : Started scan on 3C48 for 15mins.
21:47 : Started scan on 0116-208 for 5mins. On short baselines phase is
        stable than on longer baselines, may be due to scintillation.
21:54 : to check phase on 0120-153, recorded data for 5mins. Still phase is unstable.
21:55 : Unstable phase and amplitude is  due to Scintillation.
        Started command file with 0116-208 phase cal.

22:33 : scintillation is stopped.
01:19 : Stopped command file.
01:27 : Started scan on 3147.
02:00 : Stopped scan on 3C147 and observation session  is over.