GTAC Observation Log 1. Date : 26/12/2010 2. Observation Sr. No. : 5160 3. Observer : Sayan Chakraborti 4. Observer's Email : sayan@tifr.res.in 5. Project Name : Relativistic ejecta from SN 2009bb without a GRB counterpart 6. Project Code : 19_063 7. Operator(s) : Deepak, Manisha, Shilpa 8. Command File : /odisk/gtac/cmd/sayan/19_063_610.cmd 9. LTA File : /rawdata/26dec/19_063_26dec2010.lta, /rawdata1/26dec/19_063_26dec2010.ltb 10. GSB File : /gsbifrdata/26dec/19_063_26dec2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/19_063.FLAGS ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 610 MHz ,RF2 : 610 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 540 MHz, ILO2 : 540 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) : 610 610 540 540 70 70 GSB Settings : 19. Maximum Channels : 256 20. Final Bandwidth (MHz): OFF MHz; Step # 0 21. IFBW : LO5(KHz) : 32:149000-156000 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) :25 27. Name of Non-Working Antennas (with reason for each) : C04 : ABC time out. C11 : Freq. ABC reset. C09 : Fringe fluctuation[GHB] W05 : Fringe fluctuation in [GHB] W01 : Phase jumps in [GHB+GSB] 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 00:40 - 08:19 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 00:40 : Started scan on 3C147. 01:40 : Started command file 07:49 : Stopped command file. 07:57 : Started scan on 3C286. C11 started working. 08:19 : Stopped scan and observing session over.