GTAC Observation Log 1. Date : 12/06/2015 2. Observation Sr. No. : 7839 3. Observer : Urszula Pajdosz, Marek Jamrozy, Lukasz Filip Stawarz, Michal Ostrowski 4. Observer's Email : urszula.pajdosz@gmail.com, jamrozy@oa.uj.edu.pl, stawarz@astro.isas.jaxa.jp, mio@oa.uj.edu.pl 5. Project Name : Low-frequency radio observations of a hybrid blazar 6. Project Code : 27_011 7. Operator(s) : Pramod, Rupsing 8. Command File : /odisk/gtac/cmd/marek/27_011_s1/27_011_s1.cmd 9. LTA File : /gsbifrdata/11jun/27_011_11jun2015.lta 10. LogFlag File : /odisk/online1/logflags/27_011.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 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 : 33.333333 MHz 24. Final BW : 33.333333 MHz; Step # 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 591 591 540 540 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Maintenance. S03 : No feed. S04 : BLDC. S06 : Low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 11 Jun 2015 20:45:00 - 12 Jun 2015 06:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :25 37. Comments (During Observations) : 20:51 : Started scan on 3C286. 21:05 : Stopped scan. ----------------------------------------------------------------------- 21:07 : C05 servo problem. ----------------------------------------------------------------------- 21:08 : Started command file ----------------------------------------------------------------------- 21:30 : W04 frequently ABC reset. ----------------------------------------------------------------------- 22:30 : C05 started working. ----------------------------------------------------------------------- 04:34 : Change phase 1459+716 to 1638+625. 05:48 : Stopped command file. 05:52 : Started scan on 3C48. 06:03 : Stopped scan and observation session is over.