GTAC Observation Log 1. Date : 14/12/2013 2. Observation Sr. No. : 6839 3. Observer : Reinout Johannes vanWeeren,Dharam Vir Lal,Huub Rottgering,Huib Intema,Annalisa Bonafede,Marcus Bruggen,Matthias Hoeft,Andra Stroe,william richard forman,Christine Jones,Sebastian Ernesto Nuza,Francesco deGasperin 4. Observer's Email : rvweeren@strw.leidenuniv.nl,dharam@ncra.tifr.res.in,rottgeri@strw.leidenuniv.nl,hintema@nrao.edu,a.bonafede@jacobs-university.de,m.brueggen@jacobs-university.de,hoeft@tls-tautenburg.de,astroe@strw.leidenuniv.nl,wrf@cfa.harvard.edu,cjf@head.cfa.harvard.edu,snuza@aip.de,fdg@hs.uni-hamburg.de 5. Project Name : GMRT distant radio halo and relic survey 6. Project Code : 25_003 7. Operator(s) : Deepak,Nilesh,Pramod,Sachin,Surender 8. Command File : /odisk/gtac/cmd/25_003/s4.cmd,/odisk/gtac/cmd/25_003/s1.cmd,/odisk/gtac/cmd/25_003/s6.cmd,/odisk/gtac/cmd/25_003/s3.cmd,/odisk/gtac/cmd/25_003/s5.cmd,/odisk/gtac/cmd/25_003/s2.cmd 9. LTA File : /gsbifrdata/14dec/25_003_14dec2013.lta,/gsbifrdata/14dec/25_003_14dec2013.lta.1,/gsbifrdata/15dec/25_003_15dec2013.lta,/gsbifrdata/15dec/25_003_15dec2013.lta.1,/gsbifrdata/15dec/25_003_15dec2013.lta.2,/gsbifrdata/16dec/25_003_16dec2013.lta, 10. LogFlag File : /odisk/online1/logflags/25_003.FLAGS, 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. GSB CTRL : ONLINE 17. GSB Fstop : ON 18. GAIN EQ : ON 19. Stokes : TotIntensity 20. Beam - 1 : OFF 21. Beam - 2 : OFF 22. ACQ BW : 33.33 MHz 23. Final BW : 33.333333 MHz; Step # 0 24. Maximum Channels : 256 25. Channel Numbers : 0:255:1 26. LO5 -1 : 149.00 27. LO5 -2 : 156.00 28. Frequency Parameters (TPA) : 591 591 540 540 51 51. 29. Integration Time : 8.053056 Sec. 30. No of Antennas Working(Fringing) at the begining :26 31. Name of Non-Working Antennas (with reason for each) : C10,W02 : Painting. C02 : 175 pole low fringe. C14 : No fringe. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 11:40 - 08:16 34. ONLINE Machine : Lenyadri 35. No of Antennas Working(Fringing) at the end :28 36. Comments (During Observations) : 11:40 : Started scan on 3C286 for ~ 12.348 min. 11:50 : Started command file. '/odisk/gtac/cmd/25_003/s4.cmd' 16:30 : C10 released from painting and taken for observation. 19:36 : Started scan on 3C48 for ~ 16.5088 min 19:50 : W02 is taken for observation. 19:55 : Stopped scan and restarted command file. 'odisk/gtac/cmd/25_003/s1.cmd' 03:46 : Stopped command file. 03:48 : Started scan on 3C147. 04:08 : Started command file. 'odisk/gtac/cmd/25_003/s6.cmd' 08:01 : Stopped command file, and started scan on phase cal(1416+347). 08:04 : Stopped scan. 08:06 : Started scan on 3c286 for ~10min. 08:18 : started next command file. 'odisk/gtac/cmd/25_003/s3.cmd' 09:03 : W02 taken for painting. 09:24 : W04 taken for painting. 09:56 : C02 taken for Cherry picker. 11:41 : C02 released from painting and taken for observation. 16:17 : Started scan on 3C48 for 10mins. Started new LTA file. 16:31 : Started command file /odisk/gtac/cmd/25_003/s5.cmd 16:35 : W02 released for observation. 17:47 : W04 released for observation. 20:15 : S06 servo problem. 00:19 : Stopped command file. 00:25 : Started scan on 3C147. 00:40 : Stopped scan. 00:42 : Started command file. /odisk/gtac/cmd/25_003/s2.cmd 07:53 : Stopped command file. 07:54 : Started scan on phase cal (1035+564) for ~3min. 08:01 : Started scan on 3c286 for ~ 10min. 08:16 : Stopped scan and closed observation session.