GTAC Observation Log 1. Date : 09/12/2008 2. Observation Sr. No. : 4081 3. Observer : N N Jetha 4. Observer's Email : nazirah.jetha@cea.fr 5. Project Name : The radio halo-merger-cooling connection in galaxy groups at z~0.5 6. Project Code : 14NJA01 7. Operator(s) : Sachin, Santaji, Shilpa 8. Command File : /odisk/gtac/cmd/14nja01/obs_9dec.cmd 9. LTA File : /rawdata/9dec/14nja01_09dec2008.lta, /rawdata1/9dec/14nja01_09dec2008.ltb 10. LogFlag File : /btemp2/logflags/14NJA01.FLAGS.4 ANTENNA SETTINGS : 11. RF Freq(MHz) & Solar Attn(dB)- RF1 : 614 MHz ,RF2 : 244 MHz, SA1 : 0 dB, SA2 : 14 dB 12. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 680 MHz, ILO2 : 310 MHz, IVLO1 : 66 MHz, IVLO2 : 66 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 6 MHz,ON 14. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 614 244 680 310 66 66 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :27 20. Name of Non-Working Antennas (with reason for each) : C04 : For painting and servo problem. C05 : For painting. W03 : ABC time out. 21. Note for Backup : -- 22. Start and End Time of Obs.(IST): 15:35 - 00:16 23. Comments (During Observations) : ------------------------------------------- ******** ONLINE Machine : Bhaskar ********* ******** Corr Mode : IndianPolar ********* -------------------------------------------- 15:35 : Started setting. 15:56 : Started scan on 3C48. 16:13 : Stopped scan. 16:15 : /odisk/gtac/cmd/14nja01/obs_9dec.cmd command file started. 18:00 : C05 started working. 23:52 : Stopped command file and started scan on phase cal for 5 mins. NOTE : Please do not consider scan no. 22 for analysis. 00:06 : Started scan on 3C48 for 10 mins. 00:16 : Stopped scan and observation session.