GTAC Observation Log 1. Date : 26/04/2010 2. Observation Sr. No. : 4835 3. Observer : R J VAN WEEREN 4. Observer's Email : rvweeren@strw.leidenuniv.nl 5. Project Name : A triple galaxy cluster merger 6. Project Code : 18_064 7. Operator(s) : Manisha, Nilesh, Rupsingh, Sachin, Santaji, 8. Command File : /odisk/gtac/cmd/weeren/rx42.cmd 9. LTA File : /rawdata/26apr/18_064_26apr2010.lta, /rawdata1/26apr/18_064_26apr2010.ltb 10. GSB File : /gsbifrdata/26apr/18_064_26apr2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/18_064.FLAGS ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 325 MHz ,RF2 : 325 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 255 MHz, ILO2 : 255 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) : 325 325 255 255 70 70 18. Integration Time : 64 LTA ~ 8.454 Sec. 19. No of Antennas Working(Fringing) :24 20. Name of Non-Working Antennas (with reason for each) : C01 :OFF C02 :ELEVEN FEED. W03 : All MCM time out. S03 : No fringe. C03 : Painting. E04 : Painting. 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 10:50 - 20:00 23. ONLINE Machine : Shivneri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : 10:54 : Started command file. 12:06 : S03 started working. 19:14 : E04 released for observation. 19:55 : Stopped command file and Started scan on 3c147. 20:02 : Stopped scan and closed observation.