GTAC Observation Log 1. Date : 30/04/2017 2. Observation Sr. No. : 9339 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, Nilesh 8. Command File : /odisk/gtac/cmd/32_032/obs2.cmd 9. LTA File : /gwbifrdata2/30apr/32_032_500MHz_gwb_30apr2017.lta, /gwbifrdata2/30apr/32_032_1460MHz_gwb_30apr2017.lta 10. LogFlag File : /odisk/online1/logflags/32_032B.FLAGS.1, /odisk/online1/logflags/32_032.FLAGS.1 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 : 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 : 0:256:1 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 :29 32. Name of Non-Working Antennas (with reason for each) : W03 : : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 30 Apr 2017 03:00:00 - 30 Apr 2017 08:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : 02:55 : Started settings. ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_RF2 : 500 500 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 32_032B GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 32_084 GPU_BEAM_1 : PA GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : ON -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C02 C05 C08 C11 E02 S01 W01 Total=8 # BEAM-1:175 :: C00 C02 C05 C08 C11 E02 S01 W01 Total=8 # BEAM-2:130 :: C01 C03 C04 C06 C09 C10 C12 C13 C14 E03 E04 E05 E06 S02 S03 S04 S06 W02 W04 W05 W06 Total=21 # BEAM-2:175 :: C01 C03 C04 C06 C09 C10 C12 C13 C14 E03 E04 E05 E06 S02 S03 S04 S06 W02 W04 W05 W06 Total=21 03:05 : Started power eq and phasing on 3C286. 03:14 : Started command file. /odisk/gtac/cmd/32_032/obs2.cmd Note : First 3 pulsar's @ L-Band were recorded with Band 1435.5 to 1035.5. 04:30 : Changed subar 2 phasing time to 35 seconds, and added 5 sec sleep between subar 2 and subar 4 phasing commands, This was modified since subar 2 was showing poor phasing. -------------------------------------------------------------------------- 03:14:26 : Started scan on 1311-222 for ~ 0.939523 min. --Phasing Scan 03:15:41 : Started scan on 1311-222 for ~ 0.671088 min. --Phasing Scan 03:17:48 : Started scan on J1455-3330 for ~ 20.1326 min. 03:40:54 : Started scan on 1822-096 for ~ 0.939523 min. -- Phasing Scan 03:42:04 : Started scan on 1822-096 for ~ 0.671088 min. 03:45:03 : Started scan on J1614-2230 for ~ 20.1326 min. 04:08:32 : Started scan on 1609+266 for ~ 0.939523 min. -- Phasing Scan 04:09:47 : Started scan on 1609+266 for ~ 0.671088 min. -- Phasing Scan 04:13:14 : Started scan on 1609+266 for ~ 0.805306 min. -- Phasing Scan 04:14:15 : Started scan on 1609+266 for ~ 1.20796 min. -- Phasing Scan 04:15:39 : Started scan on 1609+266 for ~ 1.20796 min. -- Phasing Scan 04:19:39 : Started scan on J1640+2224 for ~ 20.4011 min. 04:44:00 : Started scan on 1822-096 for ~ 1.07374 min. -- Phasing Scan 04:45:20 : Started scan on 1822-096 for ~ 0.53687 min. -- Phasing Scan 04:48:28 : Started scan on J1713+0747 for ~ 20.1326 min. 05:10:56 : Started scan on 1822-096 for ~ 1.07374 min. -- Phasing Scan 05:12:16 : Started scan on 1822-096 for ~ 0.671088 min. 05:14:27 : Started scan on J1730-2304 for ~ 20.1326 min. 05:36:23 : Started scan on 1822-096 for ~ 1.07374 min. -- Phasing Scan 05:37:47 : Started scan on 1822-096 for ~ 0.53687 min. 05:40:04 : Started scan on J1738+0333 for ~ 19.9984 min. 06:01:54 : Started scan on 1822-096 for ~ 1.07374 min. -- Phasing Scan 06:03:19 : Started scan on 1822-096 for ~ 0.53687 min. 06:05:40 : Started scan on J1857+0943 for ~ 20.1326 min. 06:28:41 : Started scan on 1830-360 for ~ 1.07374 min. -- Phasing Scan 06:30:01 : Started scan on 1830-360 for ~ 0.53687 min. 06:31:39 : Started scan on J1909-3744 for ~ 20.1326 min. 06:58:31 : Started scan on 2202+422 for ~ 1.07374 min. --Phasing Scan 06:59:50 : Started scan on 2202+422 for ~ 0.671088 min. 07:01:34 : Started scan on J2302+4442 for ~ 20.1326 min. 07:23:43 : Started scan on 3C48 for ~ 1.07374 min. --Phasing Scan 07:25:03 : Started scan on 3C48 for ~ 0.671088 min. 07:27:29 : Started scan on J0023+0923 for ~ 20.02653 min. ------------------------------------------------------------------------- DATA File : data3 and and last two pulsars on data4. ------------------------------------------------------------- gpuuser@gwbh7:/data*/gpuuser/30apr2017/*raw ------------------------------------------------------------- /data3/gpuuser/30apr2017/J1455-3330_bm1_pa_500_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1614-2230_bm1_pa_500_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1640+2224_bm1_pa_500_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1713+0747_bm1_pa_500_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1730-2304_bm1_pa_500_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1738+0333_bm1_pa_500_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1857+0943_bm1_pa_500_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1909-3744_bm1_pa_500_200_8_30apr2017.raw /data4/gpuuser/30apr2017/J2302+4442_bm1_pa_500_200_8_30apr2017.raw /data4/gpuuser/30apr2017/J0023+0923_bm1_pa_500_200_8_30apr2017.raw ------------------------------------------------------------- gpuuser@gwbh8:/data*/gpuuser/30apr2017/*raw ------------------------------------------------------------- /data3/gpuuser/30apr2017/J1455-3330_bm2_pa_1460_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1614-2230_bm2_pa_1460_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1640+2224_bm2_pa_1460_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1713+0747_bm2_pa_1460_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1730-2304_bm2_pa_1460_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1738+0333_bm2_pa_1460_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1857+0943_bm2_pa_1460_200_8_30apr2017.raw /data3/gpuuser/30apr2017/J1909-3744_bm2_pa_1460_200_8_30apr2017.raw /data4/gpuuser/30apr2017/J2302+4442_bm2_pa_1460_200_8_30apr2017.raw /data4/gpuuser/30apr2017/J0023+0923_bm2_pa_1460_200_8_30apr2017.raw ------------------------------------------------------------- 07:50 : Observation session over. =======================================================================