GTAC Observation Log 1. Date : 23/08/2015 2. Observation Sr. No. : 8014 3. Observer : Jayaram Narayanan Chengalur, Igor Karachentsev 4. Observer's Email : chengalur@ncra.tifr.res.in, ikar@sao.ru 5. Project Name : HI in the most gas rich galaxies in the local volume 6. Project Code : 28_056 7. Operator(s) : Nilesh, Pramod 8. Command File : /odisk/gtac/cmd/chengalu/lsbcd564.cmd 9. LTA File : /gsbifrdata1/23aug/28_056_23aug2015.lta 10. LogFlag File : /odisk/online1/logflags/28_056.FLAGS.3 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1407.5835 MHz ,RF2 : 1407.5835 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 62.5835 MHz, IVLO2 : 62.5835 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 16.666666 MHz 24. Final BW : 4 MHz; Step # 2 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 137.4165 28. LO5 -2 : 167.5835 29. Frequency Parameters (TPA) : 1407.5835 1407.5835 1345 1345 62.5835 62.5835 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C10 : Servo problem E02 : Taken for BLDC C02 : L band feed is removed. C01 : Low Fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 23 Aug 2015 07:00:00 - 23 Aug 2015 11:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 06:45 : Started set up. 07:02 : Started scan on 3C147 ~ 9min. 07:20 : Started command file. /odisk/gtac/cmd/chengalu/lsbcd564.cmd. 07:50 : OUTER TRACK AZIMUTH LIMIT HIT, CHANGED to INNER TRACK. 08:05 : Restarted command file. /odisk/gtac/cmd/chengalu/lsbcd564.cmd. 10:00 : C10 released for observation. 10:45 : Stopped command file. 10:51 : Started scan on 3c286 for ~ 10min. 11:01 : Stopped scan and observation closed.