GTAC Observation Log 1. Date : 25/06/2017 2. Observation Sr. No. : 9515 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) : Navnath, Pramod 8. Command File : /odisk/gtac/cmd/32_032/24jun17.txt 9. LTA File : /gwbifrdata1/24jun/32_032_850_24jun2017_gwb.lta, /gwbifrdata1/24jun/32_032_500_24jun2017_gwb.lta, /gwbifrdata1/24jun/32_032_1460_24jun2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/32_032C.FLAGS.3, /odisk/online1/logflags/32_032B.FLAGS.10, /odisk/online1/logflags/32_032.FLAGS.11 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 :26 32. Name of Non-Working Antennas (with reason for each) : C06 :Frequently ABC time out C13 C05 : Servo problem. W02 : GAB PIU is taken for maintenance work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 24 Jun 2017 20:00:00 - 25 Jun 2017 01:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 19:00 : Started set up. Split the antennas as, # 325 # sub 2 # C01 C04 C06 W01 S01 ante 5 6 3 20 8 26 cp 0;defs 2;subar 2 # 610 # sub 3 # C02 C03 C09 W02 E03 S02 ante 6 5 1 4 13 18 27 cp 0;defs 3;subar 3 # 1420 # sub 4 # C00 C05 C08 C10 C11 C12 C13 C14 W03 W04 W05 W06 E02 E04 E05 E06 S03 S04 S06 ante 19 7 19 24 12 9 2 11 10 14 15 16 25 17 21 22 23 28 29 30 cp 0;defs 4;subar 4 --------------------------------------------------------------------------- ------------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 -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C04 S01 W01 Total=4 # BEAM-1:175 :: C01 C04 S01 W01 Total=4 # BEAM-2:130 :: C00 C08 C10 C11 C12 C14 E02 E04 E05 E06 S03 S04 S06 W03 W04 W05 W06 Total=17 # BEAM-2:175 :: C00 C08 C10 C11 C12 C14 E02 E04 E05 E06 S03 S04 S06 W03 W04 W05 W06 Total=17 # BEAM-3:130 :: C02 C03 C09 E03 S02 Total=5 # BEAM-3:175 :: C02 C03 C09 E03 S02 Total=5 -------------------------------------------------------------------------- 20:00 : Power equalized and phasing done on 3C286. 20:09 : Started command file. /odisk/gtac/cmd/32_032/24jun17.txt 19:24:02 : Started scan on 3C286 for ~ 8.14253 min. 19:43:13 : Started scan on 3C286 for ~ 10.5585 min. 19:54:02 : Started scan on 3C286 for ~ 3.93705 min. 20:09:22 : Started scan on 1130-148 for ~ 1.07374 min. 20:10:42 : Started scan on 1130-148 for ~ 0.894784 min. 20:12:58 : Started scan on J1024-0719 for ~ 20.3116 min. 20:37:38 : Started scan on 1311-222 for ~ 1.07374 min. 20:39:03 : Started scan on 1311-222 for ~ 0.805306 min. 20:41:38 : Started scan on J1455-3330 for ~ 20.3116 min. 21:05:02 : Started scan on 1822-096 for ~ 1.07374 min. 21:06:27 : Started scan on 1822-096 for ~ 0.805306 min. 21:09:16 : Started scan on J1614-2230 for ~ 20.3116 min. 21:43:48 : Started scan on 1609+266 for ~ 0.984262 min. 21:45:08 : Started scan on 1609+266 for ~ 0.715827 min. 21:47:28 : Started scan on J1640+2224 for ~ 20.2221 min. 22:10:30 : Started scan on 1822-096 for ~ 0.984262 min. 22:11:49 : Started scan on 1822-096 for ~ 0.805306 min. 22:14:43 : Started scan on J1713+0747 for ~ 20.3116 min. 22:37:07 : Started scan on 1822-096 for ~ 0.984262 min. 22:38:27 : Started scan on 1822-096 for ~ 0.894784 min. 22:40:57 : Started scan on J1730-2304 for ~ 20.4011 min. 23:03:02 : Started scan on 1822-096 for ~ 1.07374 min. 23:04:26 : Started scan on 1822-096 for ~ 0.715827 min. 23:06:52 : Started scan on J1738+0333 for ~ 20.3116 min. 23:28:52 : Started scan on 1822-096 for ~ 0.984262 min. 23:30:12 : Started scan on 1822-096 for ~ 0.805306 min. 23:33:20 : Started scan on J1857+0943 for ~ 20.2221 min. 23:56:21 : Started scan on 1830-360 for ~ 0.984262 min. 23:57:41 : Started scan on 1830-360 for ~ 0.805306 min. 23:59:38 : Started scan on J1909-3744 for ~ 20.2221 min. 00:24:41 : Started scan on 2202+422 for ~ 0.984262 min. 00:26:01 : Started scan on 2202+422 for ~ 0.715827 min. 00:28:08 : Started scan on J2302+4442 for ~ 20.2221 min. 00:50 : Command file stopped : Last pulsar and flux cal was not up. observation session closed --------------------------------------------------------------------