GTAC Observation Log 1. Date : 19/3/2013 2. Observation Sr. No. : 6430 3. Observer : Sandip Sirothia, Ishwar Chandra 4. Observer's Email : sirothia@ncra.tifr.res.in,ishwar@ncra.tifr.res.in 5. Project Name : Candidate High-redshift Radio Galaxies: Compact ultra-steep-spectrum sources from TGSS 6. Project Code : 23_066 7. Operator(s) : Navanath, Pramod, Rupsingh, 8. Command File : /odisk/gtac/cmd/sirothia/23_066_20130310a.cmd, /odisk/gtac/cmd/sirothia/23_066_20130310g.cmd, /odisk/gtac/cmd/sirothia/23_066_20130310b.cmd, /odisk/gtac/cmd/sirothia/23_066_20130310c.cmd, /odisk/gtac/cmd/sirothia/23_066_20130310d.cmd, /odisk/gtac/cmd/sirothia/23_066_20130310e.cmd, /odisk/gtac/cmd/sirothia/23_066_20130310f.cmd, /odisk/gtac/cmd/sirothia/23_066_20130310h.cmd 9. LTA File : /gsbifrdata/19mar/23_066_19mar2013.lta 10. LogFlag File : /odisk/online1/logflags/23_066.FLAGS.16 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 : IA 19. Beam - 2 : PA 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 : 2.013 Sec. 26. No of Antennas Working(Fringing) :25 27. Name of Non-Working Antennas (with reason for each) : C01 : Feed jam in calibration mode. C04 : Counter weight replacement. W02 : BLDC work. E03 : Low fringe. E05 : +apl flag in AZ axis. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 19:52 - 06:09 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 2s data file :- /gsbifrdata/19mar/23_066_19mar2013_2s.lta ---------------------------------------------------------------------- GAC confing : IA :-All working ants ( total- 25 ants) PA :-CSQ ant + W01 + S01 + E02( total- 15 ants) PSR confing : integration time :- 30us for both IA and PA --------------------------------------------------------------- 19:52 : phasing done on 3C147. 20:00 : Started scan on 3C147. 20:17 : scan stop. 20:22 : Started cmd file. /odisk/gtac/cmd/sirothia/23_066_20130310a.cmd 21:36 : Stopped command file and started following command file. /odisk/gtac/cmd/sirothia/23_066_20130310b.cmd 22:46 : Stopped command file and started following command file /odisk/gtac/cmd/sirothia/23_066_20130310c.cmd 23:58 : Stopped command file and started following command file /odisk/gtac/cmd/sirothia/23_066_20130310d.cmd 01:10 : Stopped command file and started following command file /odisk/gtac/cmd/sirothia/23_066_20130310e.cmd 02:23 : Stopped command file and started following command file /odisk/gtac/cmd/sirothia/23_066_20130310f.cmd 03:35 : Stopped command file and started following command file /odisk/gtac/cmd/sirothia/23_066_20130310g.cmd 04:45 : Stopped command file and started following command file /odisk/gtac/cmd/sirothia/23_066_20130310h.cmd 05:55 : Stopped command file. 05:59 : Started scan on 3C286. 06:15 : Stopped scan & observation session over.