GTAC Observation Log 1. Date : 15/01/2017 2. Observation Sr. No. : 9135 3. Observer : Yashwant Gupta, BHAL CHANDRA JOSHI, Jayanta Roy, Yogesh Maan, Kishalay De, Manjari Bagchi, Gopakumar Achamveedu, Nikhil Vijay Naik 4. Observer's Email : ygupta@ncra.tifr.res.in, bcj@ncra.tifr.res.in, jroy@ncra.tifr.res.in, ymaan@ncra.tifr.res.in, ugkishalayde@ug.iisc.in, manjari.bagchi@gmail.com, gopu.tifr@gmail.com, naiknikhil27@gmail.com 5. Project Name : Towards precision pulsar timing with the upgraded GMRT 6. Project Code : 31_057 7. Operator(s) : Deepak, Nilesh, Pramod, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/31_057/15jan17.cmd 9. LTA File : /gwbifrdata/15jan/31_057_500_15jan2017.lta, /gwbifrdata/15jan/31_057_1460_15jan2017.lta 10. LogFlag File : /odisk/online1/logflags/31_101.FLAGS.4 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 32 MHz,OFF GSB SETTINGS : 14. GSB Host : gsbm1_lenyadri 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 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1454 1454 1505 1505 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Jan 2017 09:00:00 - 15 Jan 2017 15:22:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : # sub 2 # 325MHz # C00 C01 C02 C05 C08 C11 C13 W01 W02 S01 ante 10 7 6 5 19 24 9 11 8 13 26 cp 0;defs 2;subar 2 # sub 4 # 1420MHz # C03 C04 C06 C09 C10 C12 C14 W03 W04 W05 W06 E02 E03 E04 E05 E06 S02 S03 S04 S06 ante 20 1 3 20 4 12 2 10 14 15 16 25 17 18 21 22 23 27 28 29 30 cp 0;defs 4;subar 4 Antennas connected in GWB and GAC at 325MHz : C00 C01 C02 C05 C13 =5 Antennas connected in GWB and GAC at 1420MHz : C03 C04 C06 C09 C12 C14 E02 E03 S02 S03 W04 = 11 --------------------------------------------------------------------------- 09:00 : Started set up. 10:00 : Power equalized and phasing done on 3C286. 10:10 : Started command file. '/odisk/gtac/cmd/31_057/15jan17.cmd' 15:22 : Stopped command file and observing session over.