GTAC Observation Log 1. Date : 06/08/2017 2. Observation Sr. No. : 9641 3. Observer : Yashwant Gupta, BHAL CHANDRA JOSHI, Nikhil Vijay Naik, Kishalay De, Yogesh Maan, Manjari Bagchi, Jayanta Roy, Gopakumar Achamveedu 4. Observer's Email : ygupta@ncra.tifr.res.in, bcj@ncra.tifr.res.in, naiknikhil27@gmail.com, ugkishalayde@ug.iisc.in, ymaan@ncra.tifr.res.in, manjari.bagchi@gmail.com, jroy@ncra.tifr.res.in, gopu.tifr@gmail.com 5. Project Name : Towards precision pulsar timing with the upgraded GMRT 6. Project Code : 32_032 7. Operator(s) : Pramod, Rupsing, Surender 8. Command File : /odisk/gtac/cmd 9. LTA File : /gwbifrdata2/05aug/32_032_05aug2017_610.lta, /gwbifrdata2/05aug/32_032_05aug2017_325.lta, /gwbifrdata2/05aug/32_032_05aug2017_1420.lta 10. LogFlag File : /odisk/online1/logflags/32_032C.FLAGS.7, /odisk/online1/logflags/32_032B.FLAGS.17, /odisk/online1/logflags/32_032.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 : 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 : ON 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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C02 : No fringe. W03 : No fringe. W04 : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 05 Aug 2017 19:00:00 - 06 Aug 2017 00:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C04 C06 S01 W01 Total=5 # BEAM-1:175 :: C01 C04 C06 S01 W01 Total=5 # BEAM-2:130 :: C00 C05 C08 C10 C12 C13 C14 E02 E04 E05 S03 S04 S06 W05 W06 Total=15 # BEAM-2:175 :: C00 C05 C08 C10 C12 C13 C14 E02 E04 E05 S03 S04 S06 W05 W06 Total=15 # BEAM-3:130 :: C03 C09 C11 E03 S02 W02 Total=6 # BEAM-3:175 :: C03 C09 C11 E03 S02 W02 Total=6 ---------------------------------------------------- ---------------------------------------------------- ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF2 : 500 500 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 32_032B GPU_RF3 : 850 850 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : 32_032C GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 32_032 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : PA GPU_BEAM_3 : PA GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF -------------------------------- -------------------------------- 19:00:00 : Started set-up. 19:28:14 : Power eq and pointing done on 3C286. 19:35:26 : Started scan on 1311-222 for ~ 1.07374 min. 19:36:50 : Started scan on 1311-222 for ~ 0.805306 min. 19:39:30 : Started scan on J1455-3330 for ~ 20.2221 min. 20:03:09 : Started scan on 1822-096 for ~ 1.07374 min. 20:04:33 : Started scan on 1822-096 for ~ 0.715827 min. 20:07:51 : Started scan on J1614-2230 for ~ 20.3116 min. 20:33:03 : Started scan on 1609+266 for ~ 1.07374 min. 20:34:28 : Started scan on 1609+266 for ~ 0.805306 min. 20:36:39 : Started scan on J1640+2224 for ~ 20.3116 min. 20:58:25 : Started scan on 1609+266 for ~ 1.07374 min. 20:59:50 : Started scan on 1609+266 for ~ 0.805306 min. 21:04:55 : Started scan on J1713+0747 for ~ 20.4011 min. 21:28:20 : Started scan on 1830-360 for ~ 1.16322 min. 21:29:49 : Started scan on 1830-360 for ~ 0.715827 min. 21:32:10 : Started scan on J1730-2304 for ~ 20.2221 min. 21:54:05 : Started scan on 1830-360 for ~ 1.16322 min. 21:55:34 : Started scan on 1830-360 for ~ 0.715827 min. 21:59:11 : Started scan on J1738+0333 for ~ 20.3116 min. 22:22:07 : Started scan on 1830-360 for ~ 1.07374 min. 22:23:32 : Started scan on 1830-360 for ~ 0.805306 min. 22:27:36 : Started scan on J1857+0943 for ~ 20.4011 min. 22:51:15 : Started scan on 1830-360 for ~ 1.07374 min. 22:52:39 : Started scan on 1830-360 for ~ 0.805306 min. 22:54:46 : Started scan on J1909-3744 for ~ 20.00809 min. 23:23:30 : Started scan on 2202+422 for ~ 1.07374 min. 23:24:54 : Started scan on 2202+422 for ~ 0.805306 min. 23:27:06 : Started scan on J2302+4442 for ~ 20.3116 min. 23:49:48 : Started scan on 3C48 for ~ 1.07374 min. 23:51:13 : Started scan on 3C48 for ~ 0.715827 min. 00:00 : Stopped scan and observation session is over. -----------------------------------------------------------------------