GTAC Observation Log 1. Date : 30/04/2017 2. Observation Sr. No. : 9342 3. Observer : Dipanjan Mitra, Willem Hermsen, Rahul Basu, Jason WilliamThomas Hessels, Joanna M Rankin 4. Observer's Email : dmitra@ncra.tifr.res.in, W.Hermsen@sron.nl, rahul@astro.ia.uz.zgora.pl, hessels@astron.nl, Joanna.Rankin@uvm.edu 5. Project Name : Deciphering the mystery of pulsar moding using simultaneous XMM-Newton/radio observation of pulsar B0823\\+26 6. Project Code : 32_012 7. Operator(s) : Deepak, Navnath, Nilesh 8. Command File : /odisk/gtac/cmd/32_012/tmp_32_012.cmd 9. LTA File : /gsbifrdata/30apr/32_012_30apr2017_325.lta 10. LogFlag File : /odisk/online1/logflags/32_035.FLAGS.7, /odisk/online1/logflags/32_012.FLAGS.7 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 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 : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : IA 22. Beam - 2 : PA 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 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) : C12 : : Elevation brakes. W03 : : Servo problem 33. Note for Backup : 34. Start and End Time of Obs.(IST): 30 Apr 2017 14:00:00 - 30 Apr 2017 23:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 14:00 : Started setup. 14:10 : Started power eq on 3C147. 14:19 : Started command file. /odisk/gtac/cmd/32_012/tmp_32_012.cmd 14:32 : Started continuous pulsar recording. 18:12 : W01 auto-parked due to high wind. 18:16 : W01 removed from GAC. 18:30 : High wind, stopped recording, all antennas parked. 21:00 : Wind speed Normal. But No Electrical Power. Also we don't have any idea about antennas structural health, as wind was above 60 Km/Hr for ~ 70 minutes. so observatory decided to abort all further observations till tomorrow, after inspection antennas will be resumed for observations. (Ref. Y. Gupta) 21:10 : closed observations.