GTAC Observation Log 1. Date : 22/10/2017 2. Observation Sr. No. : 9798 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 : 33_076 7. Operator(s) : Navnath, Nilesh, Sachin 8. Command File : /odisk/gtac/cmd/32_076/32_076_cmd.cmd 9. LTA File : /gsbifrdata/22oct/33_076_22oct2017_suba3_610.lta, /gsbifrdata/22oct/33_076_22oct2017_suba2_325.lta, /gsbifrdata/22oct/33_076_22oct2017_lband.lta, /gwbifrdata2/22oct/33_076_suba4_1460lo_22oct2017.lta, /gwbifrdata2/22oct/33_076_suba3_750lo_22oct2017.lta, /gwbifrdata2/22oct/33_076_suba2_500lo_22oct2017.lta 10. LogFlag File : /odisk/online1/logflags/32_076C.FLAGS.1, /odisk/online1/logflags/32_076C.FLAGS, /odisk/online1/logflags/32_076B.FLAGS.1, /odisk/online1/logflags/32_076B.FLAGS, /odisk/online1/logflags/32_076.FLAGS.5, /odisk/online1/logflags/32_076.FLAGS.4 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 :28 32. Name of Non-Working Antennas (with reason for each) : C09 : : 130 No fringe @ 610 Mhz. C14 :: Painting Work W05 : Frequently applying elevation brake 33. Note for Backup : 34. Start and End Time of Obs.(IST): 22 Oct 2017 12:00:00 - 22 Oct 2017 17:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 12:00 : Started setup. # 325Mhz #sub 2 # C01 C04 C06 W01 S01 ante 5 6 3 20 8 26 cp 0;defs 2;subar 2 # 610 Mhz # sub 3 # C02 C03 C09 W02 E03 S02 ante 6 5 1 4 13 18 27 cp 0;defs 3;subar 3 # 1420 Mhz #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 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 C11 C12 C13 E02 E04 E05 E06 S03 S04 S06 W03 W04 W06 Total=17 # BEAM-2:175 :: C00 C05 C08 C10 C11 C12 C13 E02 E04 E05 E06 S03 S04 S06 W03 W04 W06 Total=17 # BEAM-3:130 :: C03 E03 S02 W02 Total=4 # BEAM-3:175 :: C03 E03 S02 W02 Total=4 ========================================================================== 12:30 : Started phasing on 3C286. ------------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 : 33_076B GPU_RF3 : 750 750 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : 33_076C GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 33_076 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 GPU_BEAM_S : OFF -------------------------------- 12:45:39 : Started scan on 1311-222 for ~ 5.10027 min. 12:51:45 : Started scan on 1311-222 for ~ 14.3613 min. 13:06:28 : Started scan on 1311-222 for ~ 0.939523 min. 13:16:49 : Started scan on J1455-3330 for ~ 20.4011 min. 13:41:28 : Started scan on 1822-096 for ~ 1.07374 min. 13:42:58 : Started scan on 1822-096 for ~ 0.939523 min. 13:47:35 : Started scan on J1614-2230 for ~ 20.4011 min. 14:14:26 : Started scan on 1609+266 for ~ 0.939523 min. 14:15:55 : Started scan on 1609+266 for ~ 0.805306 min. 14:20:23 : Started scan on J1640+2224 for ~ 20.4011 min. 14:45:50 : Started scan on 1822-096 for ~ 1.20796 min. 14:47:19 : Started scan on 1822-096 for ~ 0.805306 min. 14:51:18 : Started scan on J1713+0747 for ~ 20.4011 min. 15:14:57 : Started scan on 1822-096 for ~ 1.07374 min. 15:16:26 : Started scan on 1822-096 for ~ 0.805306 min. 15:20:21 : Started scan on J1730-2304 for ~ 20.2669 min. 15:43:36 : Started scan on 1822-096 for ~ 1.07374 min. 15:45:06 : Started scan on 1822-096 for ~ 0.939523 min. 15:48:37 : Started scan on J1738+0333 for ~ 20.4011 min. 16:11:48 : Started scan on 1822-096 for ~ 1.07374 min. 16:13:17 : Started scan on 1822-096 for ~ 0.805306 min. 16:17:12 : Started scan on J1741+1351 for ~ 20.4011 min. 16:41:37 : Started scan on 1822-096 for ~ 1.20796 min. 16:43:07 : Started scan on 1822-096 for ~ 0.939523 min. 16:47:20 : Started scan on J1857+0943 for ~ 20.2669 min. 17:12:10 : Started scan on 1830-360 for ~ 0.939523 min. 17:13:34 : Started scan on 1830-360 for ~ 0.939523 min. 17:16:42 : Started scan on J1909-3744 for ~ 20.2669 min. 17:38:28 : Started scan on 1830-360 for ~ 1.20796 min. 12:45:39 : Started scan on 1311-222 for ~ 5.10027 min. 12:51:45 : Started scan on 1311-222 for ~ 14.3613 min. 13:06:28 : Started scan on 1311-222 for ~ 0.939523 min. 13:16:49 : Started scan on J1455-3330 for ~ 20.4011 min. 13:41:28 : Started scan on 1822-096 for ~ 1.07374 min. 13:42:58 : Started scan on 1822-096 for ~ 0.939523 min. 13:47:35 : Started scan on J1614-2230 for ~ 20.4011 min. 14:14:26 : Started scan on 1609+266 for ~ 0.939523 min. 14:15:55 : Started scan on 1609+266 for ~ 0.805306 min. 14:20:23 : Started scan on J1640+2224 for ~ 20.4011 min. 14:45:50 : Started scan on 1822-096 for ~ 1.20796 min. 14:47:19 : Started scan on 1822-096 for ~ 0.805306 min. 14:51:18 : Started scan on J1713+0747 for ~ 20.4011 min. 15:14:57 : Started scan on 1822-096 for ~ 1.07374 min. 15:16:26 : Started scan on 1822-096 for ~ 0.805306 min. 15:20:21 : Started scan on J1730-2304 for ~ 20.2669 min. 15:43:36 : Started scan on 1822-096 for ~ 1.07374 min. 15:45:06 : Started scan on 1822-096 for ~ 0.939523 min. 15:48:37 : Started scan on J1738+0333 for ~ 20.4011 min. 16:11:48 : Started scan on 1822-096 for ~ 1.07374 min. 16:13:17 : Started scan on 1822-096 for ~ 0.805306 min. 16:17:12 : Started scan on J1741+1351 for ~ 20.4011 min. 16:41:37 : Started scan on 1822-096 for ~ 1.20796 min. 16:43:07 : Started scan on 1822-096 for ~ 0.939523 min. 16:47:20 : Started scan on J1857+0943 for ~ 20.2669 min. 17:12:10 : Started scan on 1830-360 for ~ 0.939523 min. 17:13:34 : Started scan on 1830-360 for ~ 0.939523 min. 17:16:42 : Started scan on J1909-3744 for ~ 20.2669 min. 17:38:28 : Started scan on 1830-360 for ~ 1.20796 min. 17:40 : Closed observation.