GTAC Observation Log 1. Date : 05/01/2015 2. Observation Sr. No. : 7542 3. Observer : Jayanta Roy, Maura Ann McLaughlin, Scott M. Ransom, Bhaswati Bhattacharyya, Duncan Ross Lorimer, Lina Levin 4. Observer's Email : jayanta.roy@manchester.ac.uk, maura.mclaughlin@mail.wvu.edu, sransom@nrao.edu, bhaswati.bhattacharyya@manchester.ac.uk, Duncan.Lorimer@mail.wvu.edu, lina.s.levin@gmail.com 5. Project Name : Coherently dedispersed timing studies at the GMRT for IPTA MSPs 6. Project Code : 27_043 7. Operator(s) : Nilesh, Sachin 8. Command File : /odisk/gtac/cmd/jroy/27_043_5jan.cmd 9. LTA File : /gsbifrdata1/05jan/27_043_05jan2015_2s.lta.1,/gsbifrdata1/05jan/27_043_05jan2015_2s.lta 10. LogFlag File : /odisk/online1/logflags/27_043.FLAGS.4,/odisk/online1/logflags/27_043.FLAGS.3 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 : 20+10 dB, 32 MHz,OFF, IF-CH2 : 20+10 dB, 32 MHz,OFF GSB SETTINGS : 14. GSB Host : gsbm1 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 : 33.333333 MHz; Step # 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) : E04 : : BLDC installation work. W04 : : Mechanical maintenance. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 05 Jan 2015 12:00:00 - 05 Jan 2015 18:18:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 11:10 : Started settings. 11:30 : Started observation. with 16MHz GSB in RAW mode. 12:40 : Changed settings to 32MHz, 512 chan, REALTIME, and IA-PA. 13:00 : Started observation command file. 14:05 : stopped command file and Changed settings to 16MHz GSB in RAW mode. 14:08 : started observation in RAW mode. 16:17 : Stopped command file. -------------------------------------------------------------------------- 16:20 : IF=32 Beam-1=IA , Beam-2=off 16:30 : Power eq on 2225-049. -------------------------------------------------------------------------- 16:40 : W05,W06 removed from GAC due to RFI. -------------------------------------------------------------------------- 16:46 : Started command file 18:18 : Stopped command file and observation session over.