GTAC Observation Log 1. Date : 29/1/2013 2. Observation Sr. No. : 6352 3. Observer : C.H. IshwaraChandra,Sandeep K. Sirothia 4. Observer's Email : ishwar@ncra.tifr.res.in,sirothia@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_066/23_066_0124a.cmd, /odisk/gtac/cmd/sirothia/23_066/23_066_0124b.cmd, /odisk/gtac/cmd/sirothia/23_066/23_066_0124c.cmd, /odisk/gtac/cmd/sirothia/23_066/23_066_0124d.cmd, /odisk/gtac/cmd/sirothia/23_066/23_066_0124e.cmd, /odisk/gtac/cmd/sirothia/23_066/23_066_0124f.cmd 9. LTA File : /gsbifrdata1/29jan/23_066_29jan2013.lta 10. LogFlag File : /odisk/online1/logflags/23_066.FLAGS.4 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. GAIN EQ : ON 17. Stokes : Full_Polar 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) : 306 306 255 255 51 51. 25. Integration Time : 2.013 Sec. 26. No of Antennas Working(Fringing) :27 27. Name of Non-Working Antennas (with reason for each) : C06 : Low fringe. C03 : ABC time out. W01 : Strong RFI. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 22:10 - 06:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 22:10 : Started set up for 325MHz. ....................................................................................................................... * Selection of antenna in GAC * IA In IA : Total Antenna=27 C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 W02 W03 W04 W05 W06 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 *Note -About S04 antenna, we are using 175 pole only not 130 pole because of RFI. PA In PA : Total antenna=12 C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 .......................................................................................................................... 22:21 : Phasing is done on 3C48. 22:38 : Phasing is done on 3C147. 23:06 : Phasing is done on 0521-207. 23:11 : Started following command file. '/odisk/gtac/cmd/sirothia/23_066/23_066_0124a.cmd' 00:14 : Stopped command file. 00:20 : Phasing is done on 0837-198. 00:22 : Started following command file. '/odisk/gtac/cmd/sirothia/23_066/23_066_0124b.cmd' 01:25 : Stopped command file. 01:29 : Phasing is done on 0837-198. 01:31 : Started following command file. '/odisk/gtac/cmd/sirothia/23_066/23_066_0124c.cmd' 02:33 : Stopped command file. 02:36 : Phasing is done on 1033-343. 02:44 : Started following command file. '/odisk/gtac/cmd/sirothia/23_066/23_066_0124d.cmd' 03:48 : Stopped command file. 03:50 : Phasing is done on 1311-222. 03:53 : Started following command file. '/odisk/gtac/cmd/sirothia/23_066/23_066_0124e.cmd' 04:55 : Stopped command file. 04:58 : Phasing is done on 1311-222. 05:00 : Started following command file. '/odisk/gtac/cmd/sirothia/23_066/23_066_0124f.cmd' 06:01 : Stopped command file. 06:09 : Started scan on 3C286. 06:24 : Stopped scan on 3C286 & observation session is over.