GTAC Observation Log 1. Date : 25/04/2010 2. Observation Sr. No. : 4832 3. Observer : Simona Giacintucci, Ishwar Chandra 4. Observer's Email : ishwar@ncra.tifr.res.in,sgiacint@head.cfa.harvard.edu 5. Project Name : Origin and history of radio outbursts in galaxy groups 6. Project Code : 18_007 7. Operator(s) : Amruta, Deepak, Manisha, Santaji, 8. Command File : /odisk/gtac/cmd/simona/18_007_2_obs.cmd 9. LTA File : /rawdata/25apr/18_007_25apr2010.lta, /rawdata1/25apr/18_007_25apr2010.ltb 10. GSB File : /gsbifrdata/25apr/18_007_25apr2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/18_007.FLAGS ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 610 MHz ,RF2 : 610 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 540 MHz, ILO2 : 540 MHz, IVLO1 : 70 MHz, IVLO2 : 70 MHz 14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON 15. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 610 610 540 540 70 70 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :25 20. Name of Non-Working Antennas (with reason for each) : C01 :OFF C02 :ELEVEN FEED. C14 :servo problem C05 :Feed jam W03 : All MCM T.O. 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 07:00 - 17:27 23. ONLINE Machine : Shivneri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : 2s FILES :- GHB :/rawdata/25apr/18_007_25apr2010_2s.lta, /rawdata1/25apr/18_007_25apr2010_2s.ltb GSB : /gsbifrdata/25apr/18_007_25apr2010_gsb_2s.lta ---------------------------------------------- C11 & W01 having CSIRO feed. 06:59 : Started scan on 3c48 for ~30min. 07:36 : Started command file. 08:30 : E04 released for painting work. 09:16 : C03 released for painting work. 14:00 : C05 stared working. 17:12 : stopped the command file and scan started on 3c147. 17:27 : stopped the scan and observation session.