GTAC Observation Log 1. Date : 12/03/2017 2. Observation Sr. No. : 9254 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, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/31_057/12mar17.cmd 9. LTA File : /gsbifrdata1/12mar/31_057_306_12mar2017.lta, /gsbifrdata1/12mar/31_057_1460_12mar2017.lta, /gwbifrdata/12mar/31_057_12mar2017_500.lta, /gwbifrdata/12mar/31_057_12mar2017_1460.lta 10. LogFlag File : /odisk/online1/logflags/31_057B.FLAGS.9,, /odisk/online1/logflags/31_057.FLAGS.22 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_lenyadri 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) : 306 306 255 255 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) : C01 : No fringe. E03 : Feed cage painting. S02 : ABC timed out. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 12 Mar 2017 03:00:00 - 12 Mar 2017 08:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C03 C05 C13 Total=4 # BEAM-1:175 :: C00 C03 C05 C13 Total=4 # BEAM-2:130 :: C04 C06 C08 C09 C10 C11 C12 C14 E02 W01 W02 Total=11 # BEAM-2:175 :: C04 C06 C08 C09 C10 C11 C12 C14 E02 W01 W02 Total=11 ------------GWB Setting---------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 1.0 GPU_EDGE_FRQ : 0.000000 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_RF : 1460 1460 GPU_DDC : OFF GPU_DDCLO : 0.0000 0.0000 GPU_SIDEBAND : 1 1 GPU_RF2 : 500 500 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 31_057B GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 31_057 GPU_CNTRL : 8 GPU_FSTOP : OFF GPU_BEAM_1 : PA GPU_BEAM_2 : PA GPU_BM_INT : 8 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 32 inputs. GPU_FILRFI : RFI Filterring OFF 02:56:38 : Started scan on 1311-222 for ~ 0.268435 min. 03:00:46 : Started scan on 1311-222 for ~ 5.77136 min. 03:07:33 : Started scan on 1311-222 for ~ 5.63714 min. 03:18:52 : Started scan on 1311-222 for ~ 1.07374 min. 03:20:22 : Started scan on 1311-222 for ~ 0.671088 min. Note : suba2 phasing did not work. 03:23:51 : Started scan on J1455-3330 for ~ 20.1326 min. 03:47:52 : Started scan on 1822-096 for ~ 1.20796 min. 03:49:25 : Started scan on 1822-096 for ~ 0.805306 min. 03:53:07 : Started scan on J1614-2230 for ~ 20.1326 min. 04:24:14 : Started scan on 1609+266 for ~ 1.07374 min. 04:25:41 : Started scan on 1609+266 for ~ 0.671088 min. 04:28:40 : Started scan on J1640+2224 for ~ 20.1326 min. 05:00:57 : Started scan on 1822-096 for ~ 1.34218 min. 05:02:32 : Started scan on 1822-096 for ~ 0.671088 min. 05:06:25 : Started scan on J1713+0747 for ~ 20.1326 min. 05:29:35 : Started scan on 1822-096 for ~ 1.07374 min. 05:31:05 : Started scan on 1822-096 for ~ 0.671088 min. 05:34:41 : Started scan on J1730-2304 for ~ 20.1326 min. 05:57:27 : Started scan on 1822-096 for ~ 1.20796 min. 05:58:56 : Started scan on 1822-096 for ~ 0.671088 min. 06:02:23 : Started scan on J1738+0333 for ~ 20.1326 min. 06:25:07 : Started scan on 1822-096 for ~ 1.20796 min. 06:26:36 : Started scan on 1822-096 for ~ 0.671088 min. 06:29 : # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C03 C05 C13 Total=4 # BEAM-1:175 :: C00 C03 C05 C13 Total=4 # BEAM-2:130 :: C04 C06 C08 C09 C10 C11 C12 C14 E02 W02 Total=10 # BEAM-2:175 :: C04 C06 C08 C09 C10 C11 C12 C14 E02 W02 Total=10 06:30:29 : Started scan on J1857+0943 for ~ 20.74483 min. 06:54:18 : Started scan on 1830-360 for ~ 1.34218 min. 06:56:03 : Started scan on 1830-360 for ~ 0.671088 min. 06:58:48 : Started scan on J1909-3744 for ~ 20.2669 min. 07:29:15 : Started scan on 2202+422 for ~ 1.34218 min. 07:30:51 : Started scan on 2202+422 for ~ 0.805306 min. 07:33:53 : Started scan on J2302+4442 for ~ 19.9984 min. 07:54:06 : Stopped scan and observing session over.