GTAC Observation Log 1. Date : 07/02/2010 2. Observation Sr. No. : 4759 3. Observer : Abhik Ghosh 4. Observer's Email : abhik@cts.iitkgp.ernet.in 5. Project Name : Characterizing the foregrounds for redshifted 21-cm studies of reionization 6. Project Code : 17_033 7. Operator(s) : Deepak, Jayprakash, Rupsingh, Sachin, Santaji, 8. Command File : /odisk/gtac/cmd/17_033/6h/obs.cmd, /odisk/gtac/cmd/17_033/12h/obs.cmd 9. LTA File : /rawdata/7feb/17_033_7feb2010.lta, /rawdata/8feb/17_033_8feb2010.lta 10. LogFlag File : /odisk/online1/logflags/17_033.FLAGS ANTENNA SETTINGS : 11. RF Freq(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 14 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 218 MHz, ILO2 : 218 MHz, IVLO1 : 62 MHz, IVLO2 : 62 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 14. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 156 156 218 218 62 62 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :30 20. Name of Non-Working Antennas (with reason for each) : E05 - Strong RFI. 21. Note for Backup : -- 22. Start and End Time of Obs.(IST): 18:45 - 09:45 23. ONLINE Machine : Lenyadri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : GSB data file: /gsbifrdata/7feb/17_033_7feb2010_gsb_2s.lta /gsbifrdata/7feb/17_033_7feb2010_gsb_16s.lta /gsbifrdata/8feb/17_033_8feb2010_gsb_2s.lta /gsbifrdata/8feb/17_033_8feb2010_gsb_16s.lta /gsbifrdata/8feb/17_033_8feb2010_gsb_2s.lta.2 /gsbifrdata/8feb/17_033_8feb2010_gsb_16s.lta.2 Hardware corr. 2s lta file: /rawdata/7feb/17_033_7feb2010_2s.lta, /rawdata/8feb/17_033_8feb2010_2s.lta -------------------------------------------------- 19:05 : Started scan on 3C147. 19:30 : Scan stopped. 19:31 : Started command file /odisk/gtac/cmd/17_033/6h/obs.cmd 01:42 : stopped the command file. and changed the record files. 01:46 : scan started on 3c286. 02:05 : new command file started. /odisk/gtac/cmd/17_033/12h/obs.cmd 04:00 : Started new lta file for GSB data. : control machine (astro8) for GSB was hung : after rebooting the problem solved. 07:26 : Stopped the command file. 07:28 : Started scan on 3c286. 07:38 : Stopped the scan. 07:41 : Restarted the command file. 09:15 : E04 released for painting. 09:26 : Stopped the command file. 09:29 : Started scan on 3c286. 09:45 : Stopped the scan & observation.