GTAC Observation Log 1. Date : 05/11/2022 2. Observation Sr. No. : 14714 3. Observer : Visweshwar Ram Marthi 4. Observer\'s Email : vrmarthi@ncra.tifr.res.in 5. Project Name : GMRT-EVN long track VLBI\\r\\n 6. Project Code : FT047 7. Operator(s) : Rupsing, Shilpa, Surender 8. Command File : 9. LTA File : /gwbifrdata1/04nov/ft047_04nov2022_gwb.lta, /gwbifrdata2/04nov/ft047_04nov2022_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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 : 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) : 1409 1409 1460 1460 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C02 : Self zero. C14 : Self zero. S01 : Frequently applying elevation brakes. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 04 Nov 2022 20:00:00 - 05 Nov 2022 04:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 1 GPU_ACQ_BW : 100 GPU_FINAL_BW : 50 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1456 1456 GPU_DDCLO4 : 0.000000 0.000000 GPU_SB4 : 1 1 GCODE4 : FT047 GPU_CNTRL : TGC GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : VOLTAGE GPU_BEAM_3 : OFF GPU_BEAM_4 : VOLTAGE GPU_BM_INT : 8 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 : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED ------GWB RFI Filter Setting---------------------------------------------- FILTERED_SIGNALS : RFI_ALL # RFI_ALL=All signals filtered / RFI_CH1 =Channel 1 only / RFI_CH2=Channel 2 only EXTERNAL MEDIAN : 0 # integer value(-128 to 127) THRESHOLD VALUE : 3 # integer value(0 to 127) CONSTANT VALUE : 0 # integer value(-128 to 127) FILTERING OPTION : DIGITAL NOISE # BYPASS / CONSTANT=constant value is used / THRESHOLD / DIGITAL_NOISE DDC_STATUS : ON # DDC = ON/OFF -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-2:130 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 Total=11 # BEAM-2:175 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 Total=11 # BEAM-4:130 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 Total=11 # BEAM-4:175 :: C00 C01 C04 C05 C06 C08 C09 C10 C11 C12 C13 Total=11 -------------------------------------------------------------------------- 20:03 : Started settings. 20:21 : Power equalized and phasing done on 3C93.1. 20:18:24 : Started scan on 3C93.1 for ~ 2.41592 min. 20:21:10 : Started scan on 3C93.1 for ~ 1.96853 min. 20:25:17 : Started scan on 3C48 for ~ 3.17649 min. 20:28:34 : Started scan on 3C48 for ~ 1.45403 min. 20:32:39 : Started scan on B0329+54 for ~ 8.29913 min. 20:47:53 : Started scan on 3C454.3 for ~ 3.37781 min. 20:51:22 : Started scan on 3C454.3 for ~ 3.08701 min. 20:55:06 : Started scan on J2300+1655 for ~ 2.37118 min. 20:57:58 : Started scan on 3C454.3 for ~ 1.09611 min. 20:59:43 : Started scan on J2300+1655 for ~ 2.01327 min. 21:02:37 : Started scan on 3C454.3 for ~ 10.2453 min. 21:13:23 : Started scan on J2300+1655 for ~ 1.72246 min. 21:16:01 : Started scan on 3C454.3 for ~ 1.5435 min. 21:17:59 : Started scan on J2300+1655 for ~ 2.7962 min. 21:21:29 : Started scan on 3C454.3 for ~ 9.97685 min. 21:32:14 : Started scan on 3C395 for ~ 0.469762 min. 21:34:46 : Started scan on 3C395 for ~ 1.58824 min. 21:36:39 : Started scan on 3C395 for ~ 19.8642 min. 21:58:07 : Started scan on J1910+3327 for ~ 2.57251 min. 22:01:27 : Started scan on 3C395 for ~ 6.95695 min. 22:09:05 : Started scan on J1910+3327 for ~ 10.6703 min. 22:26:29 : Started scan on 3C454.3 for ~ 0 min. 22:38:06 : Started scan on 3C454.3 for ~ 3.69099 min. 22:41:52 : Started scan on 3C454.3 for ~ 4.5634 min. 22:46:33 : Started scan on 3C454.3 for ~ 1.5435 min. ---------------------------------------------------------------------- 23:11:34 : Started scan on 3C454.3 for ~ 1.14085 min. 23:20:47 : Started scan on 3C454.3 for ~ 21.8104 min. 23:43:22 : Started scan on J2300+1655 for ~ 1.90142 min. 23:46:15 : Started scan on J0555+3948 for ~ 0 min. 23:46:48 : Started scan on 3C454.3 for ~ 14.1376 min. 00:01:32 : Started scan on J2300+1655 for ~ 2.08037 min. 00:04:11 : Started scan on 3C454.3 for ~ 1.47639 min. 00:06:16 : Started scan on J2300+1655 for ~ 2.32644 min. 00:09:11 : Started scan on 3C454.3 for ~ 10.0887 min. 00:19:51 : Started scan on J2300+1655 for ~ 2.10274 min. 00:22:32 : Started scan on 3C454.3 for ~ 1.52113 min. 00:24:39 : Started scan on J2300+1655 for ~ 2.30407 min. 00:27:32 : Started scan on 3C454.3 for ~ 10.0663 min. 00:38:13 : Started scan on J2300+1655 for ~ 2.058 min. 00:40:51 : Started scan on 3C454.3 for ~ 1.40929 min. 00:42:51 : Started scan on J2300+1655 for ~ 2.39355 min. 00:45:49 : Started scan on 3C454.3 for ~ 10.0887 min. 00:56:29 : Started scan on J2300+1655 for ~ 2.12511 min. 00:59:12 : Started scan on 3C454.3 for ~ 1.36455 min. 01:01:08 : Started scan on J2300+1655 for ~ 2.41592 min. 01:04:10 : Started scan on 3C454.3 for ~ 10.0887 min. 01:14:50 : Started scan on J2300+1655 for ~ 2.01327 min. 01:17:26 : Started scan on 3C454.3 for ~ 1.45403 min. 01:19:29 : Started scan on J2300+1655 for ~ 2.37118 min. 01:22:28 : Started scan on 3C454.3 for ~ 10.1111 min. 01:33:09 : Started scan on J2300+1655 for ~ 2.08037 min. 01:35:50 : Started scan on 3C454.3 for ~ 3.19886 min. 01:44:36 : Started scan on J0555+3948 for ~ 2.48303 min. 01:47:31 : Started scan on J0555+3948 for ~ 4.25023 min. 01:52:17 : Started scan on J0555+3948 for ~ 18.9471 min. 02:11:35 : Started scan on J0555+3948 for ~ 39.6613 min. 02:51:35 : Started scan on J0555+3948 for ~ 52.5686 min. --------------------------------------------------------------------- 03:35 : Stopped scan and observation closed.