GTAC Observation Log 1. Date : 15/3/2014 2. Observation Sr. No. : 7010 3. Observer : George Heald,Peter Kamphuis,Gyula I.G. Jozsa,Paolo Serra,p a Duc,Gianfranco Gentile,Tom Oosterloo,Eva Juette,Maria Patterson,David A Thilker,Erwin deBlok 4. Observer's Email : heald@astron.nl,peter.kamphuis@csiro.au,jozsa@astron.nl,serra@astron.nl,paduc@cea.fr,gianfranco.gentile@ugent.be,oosterloo@astron.nl,eva.juette@astro.rub.de,mtpatter@nmsu.edu,dthilker@pha.jhu.edu,blok@astron.nl 5. Project Name : %latex%What is the dark \textsc{H\,i} companion to NGC 4274? 6. Project Code : 25_061 7. Operator(s) : Deepak,Pramod,Sachin, 8. Command File : /odisk/gtac/cmd/chengalu/hi1220.cmd 9. LTA File : /gsbifrdata/15mar//25_061_15mar2014.lta, 10. LogFlag File : /odisk/online1/logflags/25_061.FLAGS.1, ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1405 MHz ,RF2 : 1405 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345 MHz , IVLO1 : 60 MHz, IVLO2 : 60 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 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 : 16.67 MHz 23. Final BW : 4.17 MHz; Step # 2 24. Maximum Channels : 512 25. Channel Numbers : 0:511:1 26. LO5 -1 : 140.00 27. LO5 -2 : 165.00 28. Frequency Parameters (TPA) : 1405 1405 1345 1345 60 60. 29. Integration Time : 8.053056 Sec. 30. No of Antennas Working(Fringing) at the begining :27 31. Name of Non-Working Antennas (with reason for each) : E03 : Low fringe. E02 : No feed of L band W02 : No fringe. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 18:30 - 07:00 34. ONLINE Machine : Lenyadri 35. No of Antennas Working(Fringing) at the end :27 36. Comments (During Observations) : 19:00 : Started set up. 19:45 : Started scan on 3C48. 20:00 : Stopped scan and started command file. '/odisk/gtac/cmd/chengalu/hi1220.cmd' 06:30 : Stopped scan and taken scan on phase cal. 06:35 : Stopped scan on phase cal. 06:36 : Started scan on 3C286. 07:00 : Stopped observation session.