GTAC Observation Log 1. Date : 14/11/2022 2. Observation Sr. No. : 14759 3. Observer : Rahul Sharan, Bhaswati Bhattacharyya 4. Observer\'s Email : rsharan@ncra.tifr.res.in, bhaswati.bhattacharyya78@gmail.com 5. Project Name : Investigation of spectra for a set of millisecond pulsars with the upgraded GMRT 6. Project Code : 43_084 7. Operator(s) : Nilesh 8. Command File : /data1/gtac/cmd/43_084/43_084_14Nov2022_0100_cmd.py 9. LTA File : /gwbifrdata2/14nov/43_084b_14nov2022_subar2_gwb.lta, /gwbifrdata2/14nov/43_084a_14nov2022_subar1_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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 : ON 20. Stokes : Full_Stokes 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) : 591 591 540 540 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. C10 : CH-1 Very Low self, low fringe. E06 : CH-1 Very Low self, low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 14 Nov 2022 01:00:00 - 14 Nov 2022 04:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : 01:00 : Started settings. ------------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_RF1 : 500 500 GPU_DDCLO1 : 0.000000 0.000000 GPU_SB1 : -1 -1 GCODE1 : 43_084A GPU_RF2 : 550 550 GPU_DDCLO2 : 0.000000 0.000000 GPU_SB2 : 1 1 GCODE2 : 43_084B GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : VOLTAGE GPU_BEAM_2 : OFF GPU_BEAM_3 : PA GPU_BEAM_4 : OFF GPU_BM_INT : 4 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C08 C12 C14 E02 S01 S03 W01 Total=11 # BEAM-1:175 :: C00 C01 C02 C04 C08 C12 C14 E02 S01 S03 W01 Total=11 # BEAM-3:130 :: C05 C06 C09 C11 C13 E03 E04 S02 S04 W02 W03 W04 Total=12 # BEAM-3:175 :: C05 C06 C09 C11 C13 E03 E04 S02 S04 W02 W03 W04 Total=12 ---------------------------------------------------------------- Pulsar DATA files: gwbh7:/data8/gpuuser/43_084A_data8_14nov2022/* gwbh9:/data8/gpuuser/43_084B_14nov2022_data8/* ---------------------------------------------------------------- 01:20 : TGC System slowed down, hanged, hence CORR Start failed. 01:35 : TGC problem resolved and started CORR successfully. 01:42 : Started phasing on 3C48. 01:42:20 : Started scan on 3C48 for ~ 3.75809 min. 01:47:47 : Started scan on 3C48 for ~ 2.46066 min. 01:56:31 : Started scan on 3C48 for ~ 2.5054 min. 01:59:41 : Started scan on 3C48 for ~ 2.37118 min. 02:00 : Started command file. /data1/gtac/cmd/43_084/43_084_14Nov2022_0100_cmd.py 02:03:50 : Started scan on 3C48OFF1 for ~ 2.68435 min. 02:08:13 : Started scan on 3C48 for ~ 2.68435 min. 02:12:37 : Started scan on 3C48OFF2 for ~ 2.68435 min. 02:16:50 : Started scan on 3C48 for ~ 2.55013 min. 02:19:59 : Started scan on 3C48 for ~ 4.25022 min. 02:25:59 : Started scan on J0218+4232 for ~ 25.6803 min. 02:55:09 : Started scan on 3C48 for ~ 2.59487 min. 03:00 : Command file modified for recording BEAM data on phase cal. 03:04 : Started modified command file. /data1/gtac/cmd/43_084/new_cmd.py 03:05:37 : Started scan on 3C48 for ~ 2.59487 min. 03:13:53 : Started scan on 0616-349 for ~ 2.59487 min. 03:17:06 : Started scan on 0616-349 for ~ 2.63961 min. 03:21:43 : Started scan on J0437-4715 for ~ 25.6803 min. 03:51:02 : Started scan on 0837-198 for ~ 2.55013 min. 03:54:13 : Started scan on 0837-198 for ~ 2.59487 min. 03:58:49 : Started scan on J0737-3039A for ~ 25.6803 min. 04:28:17 : Started scan on 1041+027 for ~ 2.90805 min. 04:31:51 : Started scan on 1041+027 for ~ 2.63961 min. 04:36:06 : Started scan on J1022+1001 for ~ 25.6803 min. 05:02 : Stopped command file and observation over.