GTAC Observation Log 1. Date : 02/04/2016 2. Observation Sr. No. : 8513 3. Observer : Miguel Peres Torres, Ishwara Chandra and Ruta Kale 4. Observer's Email : ishwar@ncra.tifr.res.in, ruta@ncra.tifr.res.in, torres@iaa.es 5. Project Name : Changing Look AGN\r\n 6. Project Code : ddtb213 7. Operator(s) : Nilesh, Rupsing 8. Command File : /odisk/gtac/cmd/ddtb213/suba2.cmd,, /odisk/gtac/cmd/ddtb213/suba4.cmd, 9. LTA File : /gsbifrdata1/02apr/ddtb213_suba2_1390_02apr2016.lta, /gsbifrdata1/02apr/ddtb213_sub4_610_02apr2016.lta 10. LogFlag File : /odisk/online1/logflags/DDTB213.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1381 MHz ,RF2 : 1381 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1330 MHz, ILO2 : 1330MHz , 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_shivneri 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 : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1381 1381 1330 1330 51 51 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) : C03 : : Servo problem. C04 : : FCP/CST Painting. C06 : : BLDC installation. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 02 Apr 2016 11:00:00 - 02 Apr 2016 15:43:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 11:00 : Started settings. SUBA 2 : # 1400 MHz default # C01,C03,C05,C09,C10,C11,C13,E02,E04,S02,S04,W01,W03,W05 ante 14 6 1 19 4 12 9 11 8 14 16 17 21 27 29 cp 0;defs 2;subar 2 tpa 1381 1381 1330 1330 51 51 SUBA 4 : # 610 MHz default (ONLY 610 MHz) # C00,C02,C04,C06,C08,C12,C14,E03,E05,E06,S01,S03,S06,W02,W04,W06 ante 16 7 5 3 20 24 2 10 13 15 25 18 22 23 26 28 30 cp 0;defs 4;subar 4 tpa 591 591 540 540 51 51 11:19 : Started scan on 3C48 for ~ 13.4218 min. 11:35 : Started command files. /odisk/gtac/cmd/ddtb213/suba2.cmd, and /odisk/gtac/cmd/ddtb213/suba4.cmd, 15:27 : Stopped both command file. 15:32 : Started scan on 3C48. 15:43 : Stopped scan and observation session over.