GTAC Observation Log 1. Date : 26/12/2014 2. Observation Sr. No. : 7519 3. Observer : Marek Jamrozy, Lukasz Filip Stawarz, Michal Ostrowski, C.C.(Teddy) Cheung 4. Observer's Email : jamrozy@oa.uj.edu.pl, stawarz@astro.isas.jaxa.jp, mio@oa.uj.edu.pl, ccheung@milkyway.gsfc.nasa.gov 5. Project Name : Low-frequency radio observations of peculiar radio structures in the central regions of galaxy cluster Abell 585 6. Project Code : 27_002 7. Operator(s) : Navnath, Pramod, Surender 8. Command File : /odisk/gtac/cmd/marek/25dec14.cmd 9. LTA File : /gsbifrdata1/25dec/27_002_25dec2014_8s.lta 10. LogFlag File : /odisk/online1/logflags/27_002.FLAGS.3 ANTENNA SETTINGS : 11. RF Band(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 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 16.666666 MHz 24. Final BW : 16.666666 MHz; Step # 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 156 156 218 218 62 62 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C10 : No feed of 150MHz E04 : : BLDC. W04 : Maintenance. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 25 Dec 2014 22:00:00 - 26 Dec 2014 07:10:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 22:00 : Started set up. 22:13 : Started scan on 3C147. 22:23 : Stopped scan and started command file. '/odisk/gtac/cmd/marek/25dec14.cmd' 04:29 : S01 got ABC problem. Note : Scan no. 22 and 23 are bad. 06:00 : Phase cal set. Stopped command file and took scan on 3C286 for 5 mins. 06:10 : S01 started working. 06:15 : Started scan on source. 06:50 : Stopped scan. 06:54 : Started scan on 3c286. 07:10 : Stopped scan and observing session is over.