GTAC Observation Log 1. Date : 15/02/2016 2. Observation Sr. No. : 8417 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) : Navnath, Pramod 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata1/15feb/29_065_15feb2016.lta 10. LogFlag File : /odisk/online1/logflags/29_065.FLAGS.8 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 : 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) : 1382 1382 1320 1320 62 62 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C08 : : BLDC Work. E04 : : CST Painting C01 : : Low fringe 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Feb 2016 20:00:00 - 15 Feb 2016 21:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : Beam data on node 33 and 34 /mnt/d/gsbuser/29_065_15feb2016: /mnt/a/gsbuser/29_065_15feb2016: Antennas selected in GAC Central square (Except C08) +W01+S01+E02 = 16 ------------------------------------------ 20:00 : Started setup. 20:10 : Power eq. done on crab 100 counts. 20:20 : Phasing done on 3C147. GAC : CSQ( except C01 & C08 ) +S01,W01,E02 20:27 : Started pulsar recording. 20:27:52 : Started scan on B0531+21 for ~ 10.9321 min. 20:38:01 : Started scan on B0531+21 for ~ 10.1401 min. 20:49:31 : Started scan on B0531+21 for ~ 10.29496 min. 21:05:52 : Started scan on 3C147 for ~ 2.2817 min. 21:09:07 : Started scan on 3C147 for ~ 0.805306 min. 21:10 : Observation session over --------------------------------------