GTAC Observation Log 1. Date : 23/07/2010 2. Observation Sr. No. : 4975 3. Observer : Sayan 4. Observer's Email : sayan@tifr.res.in 5. Project Name : SN2008iz 6. Project Code : 18_040 7. Operator(s) : Navanath, Sachin, 8. Command File : /odisk/gtac/cmd/sayan/obs18/18_040_1390.cmd 9. LTA File : /rawdata/23jul/18_040_23jul2010.lta, /rawdata1/23jul/18_040_23jul2010.ltb 10. GSB File : /gsbifrdata/23jul/18_040_23jul2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/18_040.FLAGS.2 ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1415.4448 MHz ,RF2 : 1415.4448 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1350 MHz, ILO2 : 1350 MHz, IVLO1 : 65.4448 MHz, IVLO2 : 65.4448 MHz 14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 MHz,ON 15. BB BW(KHz) & BB ALC : 8000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 1415.4448 1415.4448 1350 1350 65.4448 65.4448 18. Integration Time : 16 LTA ~ 2.114 Sec. 19. No of Antennas Working(Fringing) :26 20. Name of Non-Working Antennas (with reason for each) : E06 : ABC Time-out. C03 : Servo Time out. C06 : Servo Time out and Mcm 14 time out. S01 : Lo1 unlock. 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 09:00 - 13:00 23. ONLINE Machine : Shivneri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : ------------------------------------------------- GSB settings : Full Stokes ACQ BW : 16MHz. Final BW : OFF. 512 channels. ------------------------------------------------- 09:00 : Started setup for 18_040 project. 09:12 : Started scan on 3c147 for 15min. Settings GHB : Correlator Mode : IndianPolar Radio Frequency Band : 1390 MHz LO1=1350 MHz., LO4=65.4448 MHz., IF-BW= 16 MHz. BB-BW= 8 MHz., Slr_Atn= 0 dB., ALC= ON. tpa 1415.4448 1415.4448 1350 1350 65.4448 65.4448 GSB Settins : ACQ band Width : 16mhz. Channals : 512 Final BandWidth: OFF LO5 : 138mzh. 09:34 : Started command file. /odisk/gtac/cmd/sayan/obs18/18_040_610.cmd 10:05 : C03 Servo problem solved back in obsevation. 10:27 : MSEB Power failure for all ant : command file stopped. 10:37 : Restarted command file. /odisk/gtac/cmd/sayan/obs18/18_040_610.cmd 10:45 : C03 relesed for observation. 11:30 : C06 released for observation. 13:32 : Started scan on 3c147 for 15min. 13:45 : observation session over.