GTAC Observation Log 1. Date : 20/12/2014 2. Observation Sr. No. : 7504 3. Observer : Jayanta Roy, Bhaswati Bhattacharyya, Yashwant Gupta, Dipankar Bhattacharya 4. Observer's Email : jayanta.roy@manchester.ac.uk, bhaswati.bhattacharyya@manchester.ac.uk, ygupta@ncra.tifr.res.in, dipankar@iucaa.ernet.in 5. Project Name : Long-term timing program for millisecond pulsars discovered by the GMRT in Fermi-directed searches 6. Project Code : 27_041 7. Operator(s) : Surender 8. Command File : /odisk/gtac/cmd/ 9. LTA File : /gsbifrdata/20dec/27_041_20dec2014_2s.lta.4,/gsbifrdata/20dec/27_041_20dec2014_2s.lta.3,/gsbifrdata/20dec/27_041_20dec2014_2s.lta.2,/gsbifrdata/20dec/27_041_20dec2014_2s.lta.1,/gsbifrdata/20dec/27_041_20dec2014_2s.lta 10. LogFlag File : /odisk/online1/logflags/27_041.FLAGS.12 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 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 :26 32. Name of Non-Working Antennas (with reason for each) : C04 : Strong RFI. C10 : PC104 testing. E04 : BLDC. W06 : STRONG RFI. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 20 Dec 2014 17:24:00 - 20 Dec 2014 19:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 17:24 : Started set-up. 17:44 : Power eq and phasing done on 3C48. 17:45 : Started command file. 19:00 : Stopped command file and observing session is over.