GTAC Observation Log 

1. Date : 16/11/2010
2. Observation Sr. No. : 5102
3. Observer : Ayesha Begum
4. Observer's Email : ccappa@fcaglp.unlp.edu.ar,begum@astro.wisc.edu
5. Project Name : High resolution imaging of the ring nebula around WR138a
6. Project Code : 19_030
7. Operator(s) : Manisha,
	Navanath,
	Nilesh,
	Rupsingh,
	Sachin,
	
8. Command File : /odisk/gtac/cmd/ash/wr138.cmd
9. LTA/LTB File : /rawdata/16nov/19_030_16nov2010.lta,
	/rawdata1/16nov/19_030_16nov2010.ltb
10. GSB File : /gsbifrdata/16nov/19_030_16nov2010_gsb.lta,
	/gsbifrdata/16nov/19_030_16nov2010_gsb.lta.4
11. LogFlag File : /odisk/online1/logflags/19_030.FLAGS

ANTENNA SETTINGS :

12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1280 MHz ,RF2 : 1280 MHz, SA1 : 0 dB, SA2 : 0 dB
13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1210 MHz, ILO2 : 1210 MHz, IVLO1 : 70 MHz, IVLO2 : 70 MHz
14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON
15. BB BW(KHz) & BB ALC : 16000 KHz, ON

CORRELATOR SETTINGS :

GHB Settings :
16. GHB Channels : 0:127:1
17. Correlator Mode : IndianPolar
18. Frequency Parameters (TPA) : 1280 1280 1210 1210 70 70 

GSB Settings :
19. Maximum Channels : 256 
20. Final Bandwidth (MHz): OFF MHz; Steps : 0
21. IFBW : LO5(MHz) : 32:149-156 MHz
22. Stokes : Total_Intensity
23. Beam - 1 : OFF
24. Beam - 2 : OFF

25. Integration Time : 128 LTA ~ 16.908 Sec.
26. No of Antennas Working(Fringing) :28

27. Name of Non-Working Antennas (with reason for each) :
C00 and C03 : painting.
S01-175pol : Low fringe.
C14 : Low Fringe.
28. Note for Backup :--

29. Start and End Time of Obs.(IST): 11:30 - 22:34

30. ONLINE Machine : Lenyadri

31. Comments (During Observations) :
11:30 : Started setup for project 19_030.
11:36 : Started scan on 3C286.
12:04 : Started cmd file.
15:35 : GSB correlator hung.
16:00 : Strong RFI lines @30to1.
17:00 : C00 released gor obsrvation.
17:14 : GSB correlator started working. 
22:14 : Stopped command file.
22:19 : Started scan on 3C48.
22:34 : Stopped scan and observation over.