GTAC Observation Log 1. Date : 17/12/2012 2. Observation Sr. No. : 6278 3. Observer : Dharam Vir Lal 4. Observer's Email : dharam@ncra.tifr.res.in 5. Project Name : Strong radio AGN in the center of galaxy groups 6. Project Code : 23_055 7. Operator(s) : Shilpa, Surender 8. Command File : /odisk/gtac/cmd/dharam/23_055_17dec.cmd 9. LTA File : /gsbifrdata/17dec/23_055_17dec2012.lta 10. LogFlag File : /odisk/online1/logflags/23_055.FLAGS.8 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540 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. GAIN EQ : ON 17. Stokes : Total_Intensity 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 32 MHz 21. Maximum Channels : 256 22. IFBW (MHz) : LO5 (KHz) : 32:149000-156000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 591 591 540 540 51 51. 25. Integration Time : 8.053 Sec. 26. No of Antennas Working(Fringing) :28 27. Name of Non-Working Antennas (with reason for each) : W05 : Mechanical maintenance. S01 : BLDC. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 05:00 - 09:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 05:00 : Started settings. 05:15 : Started scan on 3C286. 05:56 : Stopped scan. 05:58 : Started command file. 08:33 : C12 taken for painting. 08:42 : E02 taken for painting. 09:05 : C06 taken for painting. 09:01 : Stopped command file and stopped scan on source. 09:03 : Started scan on phase calibrator. 09:10 : Stopped scan on phase calibrator. 09:16 : Started scan on 3C286.