GTAC Observation Log 1. Date : 23/01/2021 2. Observation Sr. No. : 12828 3. Observer : Bhaswati Bhattacharyya, Jayanta Roy, Ben Stappers, Michael Keith, Mateusz Malenta, Maura Ann McLaughlin, Paul Ray, Scott M. Ransom, Jayaram Narayanan Chengalur, Andrew Lyne, Sanjay S. Kudale, Ujjwal Panda, Shubham Singh, Wes Armour, Karel Adamek 4. Observer\'s Email : bhaswati@ncra.tifr.res.in, jroy@ncra.tifr.res.in, Ben.Stappers@manchester.ac.uk, mkeith@pulsarastronomy.net, mateusz.malenta@student.manchester.ac.uk, maura.mclaughlin@mail.wvu.edu, paul.ray@nrl.navy.mil, sransom@nrao.edu, chengalur@ncra.tifr.res.in, andrew.lyne@manchester.ac.uk, ksanjay@gmrt.ncra.tifr.res.in, ujjwalpanda97@gmail.com, ssingh@ncra.tifr.res.in, wes.armour@oerc.ox.ac.uk, karel.adamek@oerc.ox.ac.uk 5. Project Name : GMRT High Resolution Southern Sky (GHRSS) survey for millisecond pulsars and transients : A SKA precursor survey 6. Project Code : 39_062 7. Operator(s) : Nilesh, Sachin, Shilpa, Shriram 8. Command File : /data1/gtac/cmd/bhaswati/23jan2.py, /data1/gtac/cmd/bhaswati/23jan.py 9. LTA File : /gsbifrdata/23jan/39_062_23jan21_gsb.lta, /gwbifrdata2/23jan/39_062_23jan21_gwb.lta 10. LogFlag File : 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_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE/TGC 18. GSB Fstop : ON 19. GAIN EQ : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : IA 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C06 : No fringe. W04 : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 23 Jan 2021 00:00:00 - 23 Jan 2021 08:05:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : -1 -1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_062 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : IA GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 4 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : Voltage Detection GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 16 GPU_BEAM_BIT : 8 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W05 W06 Total=27 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W03 W05 W06 Total=27 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=20 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=20 # GSB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W05 W06 Total=26 # BEAM-1:175 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W05 W06 Total=26 # BEAM-2:130 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W05 W06 Total=26 # BEAM-2:175 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 W01 W02 W05 W06 Total=26 00:45 : Completed setup. GSB Power equalisation took too much time. As per observer\'s instrction we were about to go on ONLINE machine but once again did GSB power equalisation from scratch but scattering was there as it was previously. So just continued just by removing W03 from GAC. 00:46:41 : Started scan on 3C147 for ~ 2.55013 min. 01:33:07 : Started scan on 3C147 for ~ 3.13174 min. 01:37:29 : Started scan on 0837-198 for ~ 2.86331 min. 01:46:29 : Started scan on 0837-198 for ~ 2.2817 min. 01:49:13 : Started scan on 0837-198 for ~ 2.19222 min. 01:53:59 : Started scan on J0705-3535 for ~ 12.2138 min. 02:08:20 : Started scan on J0711-3535 for ~ 12.2585 min. 02:22:44 : Started scan on J0718-3515 for ~ 12.1691 min. 02:37:10 : Started scan on J0725-3511 for ~ 12.2138 min. 02:51:35 : Started scan on J0731-3525 for ~ 12.1691 min. 03:05:56 : Started scan on J0737-3503 for ~ 6.39771 min. 03:21:54 : Started scan on 0837-198 for ~ 2.19222 min. 03:24:30 : Started scan on 0837-198 for ~ 2.23696 min. 03:28:53 : Started scan on J0836-3516 for ~ 12.2138 min. 03:43:17 : Started scan on J0842-3526 for ~ 12.1691 min. 03:57:38 : Started scan on J0848-3521 for ~ 12.2138 min. 04:11:41 : Started scan on 0837-198 for ~ 2.32644 min. 04:14:24 : Started scan on 0837-198 for ~ 2.23696 min. 04:18:47 : Started scan on J0854-3516 for ~ 12.2138 min. 04:33:08 : Started scan on J0941-3237 for ~ 12.1691 min. 04:47:27 : Started scan on J0948-3238 for ~ 12.2138 min. 05:01:48 : Started scan on J0954-3236 for ~ 12.1691 min. 05:16:11 : Started scan on 1154-350 for ~ 2.2817 min. 05:18:52 : Started scan on 1154-350 for ~ 2.23696 min. 05:23:16 : Started scan on J1003-3248 for ~ 12.1691 min. 05:37:34 : Started scan on J1007-3237 for ~ 12.2138 min. 05:51:53 : Started scan on J1014-3239 for ~ 12.2138 min. 06:06:14 : Started scan on J1020-3243 for ~ 12.2585 min. 06:20:53 : Started scan on HR_1243-47 for ~ 15.8824 min. 06:38:55 : Started scan on HR_1255-46 for ~ 15.8824 min. 06:57:08 : Started scan on HR_1516-43 for ~ 15.8824 min. 07:15:49 : Started scan on 1526-138 for ~ 2.32644 min. 07:18:34 : Started scan on 1526-138 for ~ 2.23696 min. 07:23:16 : Started scan on J1420-2953 for ~ 12.2138 min. 07:37:36 : Started scan on J1429-3002 for ~ 12.1691 min. 07:51:56 : Started scan on J1435-3004 for ~ 12.1691 min. 08:05 : stopped scan, command file and observation closed.