GTAC Observation Log 1. Date : 28/01/2016 2. Observation Sr. No. : 8364 3. Observer : Sachindra Naik, A.R. Rao, Dipankar Bhattacharya, BHAL CHANDRA JOSHI, Biswajit Paul, Santosh Vadawale 4. Observer's Email : snaik.prl@gmail.com, arrao@tifr.res.in, dipankar@iucaa.ernet.in, bcj@ncra.tifr.res.in, bpaul@rri.res.in, santoshv@prl.res.in 5. Project Name : Simultaneous ASTROSAT and GMRT Observations of Crab Pulsar 6. Project Code : 29_065 7. Operator(s) : Pramod, Rupsing 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/28jan/29_065_28jan2016_2s.lta 10. LogFlag File : /odisk/online1/logflags/29_065.FLAGS.6 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1382 MHz ,RF2 : 1382 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 16 MHz,OFF, IF-CH2 : 24+4 dB, 16 MHz,OFF 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 : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : Volt 23. ACQ BW : 16.666666 MHz 24. Final BW : 16.666666 MHz; Step # 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 1382 1382 1320 1320 62 62 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Taken for BLDC C12 : Taken for CST painting W04 : Taken for gear box replacement. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 28 Jan 2016 20:00:00 - 28 Jan 2016 22:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : Antennas selected in GAC : Central sq. (Except C03 and C12)+W01+S01+E02 =15 ----------------------------------------------------- 19:00 : Stared set up. 19:30 : Power equalized on crab. 19:43 : Phasing done on 3C147. 20:09:32 : Started scan on B0531+21 for ~ 15.7035 min. 20:26:23 : Started scan on B0531+21 for ~ 16.1732 min. 20:42:46 : Started scan on B0531+21 for ~ 15.8712 min. 20:58:50 : Started scan on B0531+21 for ~ 24.7296 min. 21:27:43 : Started scan on 3C147 for ~ 3.52321 min. 21:33:04 : Started scan on 3C147 for ~ 1.87905 min. -----------------------------------------------------------------------