GTAC Observation Log 1. Date : 12/11/2017 2. Observation Sr. No. : 9853 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 8. Command File : /odisk/gtac/cmd/33_076/obs_12nov.cmd 9. LTA File : /gwbifrdata2/12nov/33_076_12nov2017_suba4_1460.lta, /gwbifrdata2/12nov/33_076_12nov2017_suba3_750.lta, /gwbifrdata2/12nov/33_076_12nov2017_suba2_500.lta 10. LogFlag File : /odisk/online1/logflags/33_076.FLAGS.7 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) : W04 : : ABC time out. C01 : No fringe @ 325 Mhz 33. Note for Backup : 34. Start and End Time of Obs.(IST): 12 Nov 2017 00:00:00 - 12 Nov 2017 05:05:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 00:00 : Started setup and Started suba array configuration. 00:07 : Started feed ratation to 325 and 610 Mhz. 00:12 : Started RF Settings for Three bands. 00:20 : Started GAB configuration 00:25 : Started GWB chain. 00:30 : Started Power eq and phasing on 3C48. ================================================================ # sub 2 # C01 C04 C06 W01 S01 ante 5 6 3 20 8 26 cp 0;defs 2;subar 2 # sub 3 # C02 C03 C09 W02 E03 S02 ante 6 5 1 4 13 18 27 cp 0;defs 3;subar 3 # 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 :: C00 C05 C08 C10 C11 C12 C13 C14 E02 E04 E05 E06 S03 S04 S06 W03 W05 Total=17 # BEAM-1:175 :: C00 C05 C08 C10 C11 C12 C13 C14 E02 E04 E05 E06 S03 S04 S06 W03 W05 Total=17 # BEAM-2:130 :: C04 C06 S01 W01 Total=4 # BEAM-2:175 :: C04 C06 S01 W01 Total=4 # BEAM-3:130 :: C00 C05 C08 C10 C11 C12 C13 C14 E02 E04 E05 E06 S03 S04 S06 W03 W05 Total=17 # BEAM-3:175 :: C00 C05 C08 C10 C11 C12 C13 C14 E02 E04 E05 E06 S03 S04 S06 W03 W05 Total=17 # BEAM-4:130 :: C02 C03 C09 E03 S02 W02 Total=6 # BEAM-4:175 :: C02 C03 C09 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 : 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 : Voltage GPU_BEAM_2 : PA GPU_BEAM_3 : PA GPU_BEAM_4 : PA GPU_BM_INT : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF --------------------------------===================================== 00:35 :Started cmd file. /odisk/gtac/cmd/33_076/obs_12nov.cmd 00:33:16 : Started scan on 3C48 for ~ 1.61061 min. 00:38:40 : Started scan on 3C48 for ~ 1.07374 min. 00:40:09 : Started scan on 3C48 for ~ 0.894784 min. 00:44:51 : Started scan on J0340+4130 for ~ 20.58 min. 01:09:07 : Started scan on 3C48 for ~ 1.07374 min. 01:10:41 : Started scan on 3C48 for ~ 0.715827 min. 01:14:26 : Started scan on J0023+0923 for ~ 20.58 min. 01:40:17 : Started scan on 0440-435 for ~ 0.894784 min. 01:41:46 : Started scan on 0440-435 for ~ 0.715827 min. 01:44:59 : Started scan on J0437-4715 for ~ 20.58 min. 02:11:12 : Started scan on 0534+194 for ~ 0.894784 min. 02:12:41 : Started scan on 0534+194 for ~ 0.715827 min. 02:17:09 : Started scan on J0613-0200 for ~ 20.58 min. 02:44:57 : Started scan on 3C147 for ~ 1.07374 min. 02:46:26 : Started scan on 3C147 for ~ 0.715827 min. 02:49:34 : Started scan on J0645+5158 for ~ 20.58 min. 03:17:08 : Started scan on 0744-064 for ~ 1.07374 min. 03:18:37 : Started scan on 0744-064 for ~ 0.894784 min. 03:22:55 : Started scan on J0751+1807 for ~ 20.58 min. 03:47:40 : Started scan on 0834+555 for ~ 1.07374 min. 03:49:09 : Started scan on 0834+555 for ~ 0.715827 min. 03:52:17 : Started scan on J1012+5307 for ~ 20.4011 min. 04:18:49 : Started scan on 0837-198 for ~ 1.07374 min. 04:20:28 : Started scan on 0837-198 for ~ 0.715827 min. 04:25:00 : Started scan on J1022+1001 for ~ 20.58 min. 04:49:45 : Started scan on 0837-198 for ~ 1.2527 min. 04:51:28 : Started scan on 0837-198 for ~ 0.715827 min. 04:55:28 : Started scan on J1024-0719 for ~ 10.2005 min. 05:05 : Observation session over. =====================================================================