GTAC Observation Log 1. Date : 24/08/2016 2. Observation Sr. No. : 8847 3. Observer : Sachindra Naik, A.R. Rao, Dipankar Bhattacharya, BHAL CHANDRA JOSHI, Biswajit Paul, Santosh Vadawale, Vishal R Gajjar, Brijesh Kumar 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, gajjar@ncra.tifr.res.in, brij@aries.ernet.in 5. Project Name : Simultaneous Radio (GMRT), Optical (ARIES telescope) and X-ray (ASTROSAT) Observations of Crab Pulsar 6. Project Code : 30_087 7. Operator(s) : Navnath, Pramod 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata1/24aug/30_087_24aug2016.lta 10. LogFlag File : /odisk/online1/logflags/30_087.FLAGS.3 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 : 4+14 dB, 16 MHz,OFF, IF-CH2 : 4+14 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 : 0 MHz; Step # 0 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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : E06 : : Servo Problem W03 : : Maintenance 33. Note for Backup : 34. Start and End Time of Obs.(IST): 24 Aug 2016 07:00:00 - 24 Aug 2016 08:30:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 06:10 : Started feed rotation and Pointing @ 1390Mhz 07:00 : Started setup. 07:15 : Started power eq on crab at 100 counts. 07:20 : Phasing done on 3c147. GAC Config : CSQ+ 1 arm ants added in GAC. 07:25 : Started scan on B0531+21 for 50min. 08:19 : Started scan on 3C147 for 1 min. 08:22 : Started scan on +5d off on 3147 for 1 min. 08:23 : Stopped scan and observation session is over.