GTAC Observation Log 1. Date : 21/5/2013 2. Observation Sr. No. : 6509 3. Observer : Nissim Kanekar 4. Observer's Email : nkanekar@ncra.tifr.res.in 5. Project Name : The spin temperature of high-redshift damped Lyman-alpha systems 6. Project Code : 24_053 7. Operator(s) : Rupsingh, 8. Command File : /odisk/gtac/cmd/nissim/sgra.cmd 9. LTA File : /gsbifrdata/21may/24_053_21may2013.lta, /gsbifrdata/22may/24_053_22may2013.lta 10. LogFlag File : /odisk/online1/logflags/24_053.FLAGS.6, /odisk/online1/logflags/24_053.FLAGS.7 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+18 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 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 32 MHz 21. Maximum Channels : 512 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 : 16.106 Sec. 26. No of Antennas Working(Fringing) :27 27. Name of Non-Working Antennas (with reason for each) : S02 : ABC time out. E03 : BLDC work. E04 : Servo Work. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 23:20 - 06:15 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : # 2s data file # /gsbifrdata1/21may/24_053_21may2013_2s.lta, /gsbifrdata1/22may/24_053_22may2013_2s.lta ---------------------------------------------------------------------- 23:25 : L04-51 setting problem (Machine reboot then problem solved). 23:35 : Started power eq on 3C286. 23:50 : power eq done. 00:00 : Started scan on 3C286. 00:17 : Stopped scan. 00:24 : Started command file. 04:54 : Stopped command file. 05:02 : Started scan on 3C48. 05:17 : Stopped scan. ------------------------------------------------------------------------ 05:20 : Setup IF-6MHz,Final BW-4MHz,step-0 ALC & gain off. 05:28 : Started power eq on SGRA @800 counts. 05:33 : Power eq.done. 05:34 : Scan on SGRA. 05:50 : Stopped scan. 05:58 : Started scan on 3C48. 06:15 : Stopped scan & observation session over.