GTAC Observation Log 1. Date : 12/02/2017 2. Observation Sr. No. : 9194 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) : Nilesh, Pramod, Sachin 8. Command File : /odisk/gtac/cmd/31_057/12feb.cmd 9. LTA File : /gwbifrdata/12feb/31_057_500_12feb2017.lta, /gwbifrdata/12feb/31_057_1460_12feb2017.lta 10. LogFlag File : /odisk/online1/logflags/31_057B.FLAGS.6, /odisk/online1/logflags/31_057.FLAGS.18 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_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 : 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 : 16.1061 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): 12 Feb 2017 05:00:00 - 12 Feb 2017 10:15:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : Antennas Selection for dual frequency : # sub 2 #325MHz # C00 C02 C05 C13 W01 W02 E02 E04 S01 S02 ante 10 7 5 19 11 8 13 17 21 26 27 cp 0;defs 2;subar 2 # sub 4 # C01 C03 C04 C06 C08 C09 C10 C11 C12 C14 W03 W04 W05 W06 E03 E05 E06 S03 S04 S06 ante 20 6 1 3 20 24 4 12 9 2 10 14 15 16 25 18 22 23 28 29 30 cp 0;defs 4;subar 4 Antennas selected in GAC : Beam1 : C00 C02 C05 C13 E02 = 5 Beam2 : C01 C03 C04 C06 C08 C09 C10 C11 C12 C14 E03 =11 --------------------------------------------------------------------------- 03:00 : Started set up. 03:40 : Power equa 03:59:12 : Started scan on 1311-222 for ~ 0.805306 min. 04:00:41 : Started scan on 1311-222 for ~ 0.805306 min. 04:04:08 : Started scan on J1455-3330 for ~ 20.1326 min. 05:00:16 : Started scan on 1822-096 for ~ 0.805306 min. 05:01:46 : Started scan on 1822-096 for ~ 0.53687 min. 05:05:22 : Started scan on J1614-2230 for ~ 20.1326 min. 05:37:37 : Started scan on 1609+266 for ~ 1.07374 min. 05:39:06 : Started scan on 1609+266 for ~ 0.53687 min. 05:42:00 : Started scan on J1640+2224 for ~ 16.1061 min. 06:05:53 : Started scan on 1822-096 for ~ 1.07374 min. 06:07:22 : Started scan on 1822-096 for ~ 0.805306 min. 06:11:03 : Started scan on J1713+0747 for ~ 20.1326 min. 06:34:18 : Started scan on 1822-096 for ~ 1.07374 min. 06:35:52 : Started scan on 1822-096 for ~ 0.53687 min. 06:39:00 : Started scan on J1730-2304 for ~ 20.1326 min. 07:01:57 : Started scan on 1822-096 for ~ 1.07374 min. 07:03:30 : Started scan on 1822-096 for ~ 0.53687 min. 07:06:48 : Started scan on J1738+0333 for ~ 20.1326 min. 07:29:39 : Started scan on 1822-096 for ~ 0.805306 min. 07:31:09 : Started scan on 1822-096 for ~ 0.805306 min. 07:34:45 : Started scan on J1857+0943 for ~ 19.8642 min. 07:58:42 : Started scan on 1830-360 for ~ 0.805306 min. 08:00:07 : Started scan on 1830-360 for ~ 0.53687 min. 08:03:01 : Started scan on J1909-3744 for ~ 20.1326 min. 08:28:41 : Started scan on 2202+422 for ~ 1.07374 min. 08:30:11 : Started scan on 2202+422 for ~ 0.53687 min. 08:33:14 : Started scan on J2302+4442 for ~ 20.1326 min. 09:15 : Stopped observations.