GTAC Observation Log 1. Date : 28/05/2021 2. Observation Sr. No. : 13127 3. Observer : Tasha Gautam, Paulo Cesar Freire, Yashwant Gupta, Alessandro Ridolfi, Robert Wharton 4. Observer\'s Email : tgautam@mpifr-bonn.mpg.de, pfreire@mpifr-bonn.mpg.de, ygupta@ncra.tifr.res.in, alessandro.ridolfi@inaf.it, wharton@mpifr-bonn.mpg.de 5. Project Name : Following up radio sources in globular cluster NGC 6652 6. Project Code : 40_063 7. Operator(s) : Navnath 8. Command File : /data1/gtac/cmd/40_063/cmd_40_063_28may.py 9. LTA File : /gwbifrdata2/28may/40_063_28may2021_b4.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 : 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) : 591 591 540 540 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 28 May 2021 03:00:00 - 28 May 2021 06:15:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :29 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 : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 470 470 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : SUBA4 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : VOLTAGE GPU_BEAM_2 : PA GPU_BEAM_3 : PA GPU_BEAM_4 : OFF GPU_BM_INT : 8 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 : 0 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 03:00:00 : Started setup. 03:09:41 : Started scan on 1830-360 for ~ 2.86331 min. : power eq done. 03:13:34 : Started scan on 1830-360 for ~ 4.07127 min. 03:17:47 : Started scan on 1830-360 for ~ 2.058 min. : phasing done. : C11-ch1 removed from GAC. 03:20:00 : Started cmd file. /data1/gtac/cmd/40_063/cmd_40_063_28may.py 03:25:01 : Started scan on B1839+09 for ~ 3.3107 min. 03:30:00 : changed disk data3 to data7 03:33:52 : Started scan on J1835-3259t for ~ 45.3208 min. 04:20:31 : Started scan on 1830-360 for ~ 1.34218 min. 04:22:09 : Started scan on 1830-360 for ~ 1.07374 min. 04:24:48 : Started scan on J1835-3259c for ~ 45.3208 min. 05:11:28 : Started scan on 1830-360 for ~ 1.34218 min. 05:13:03 : Started scan on 1830-360 for ~ 1.07374 min. 05:15:55 : Started scan on J1835-3259i for ~ 45.3208 min. 06:02:35 : Started scan on 1830-360 for ~ 1.38692 min. 06:04:13 : Started scan on 1830-360 for ~ 1.07374 min. 06:07:53 : Started scan on B1839+09 for ~ 3.26596 min. 06:12:00 : Observation session over. --------------------------------------------- ----------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C12 C13 C14 Total=12 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=13 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C12 C13 C14 Total=12 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 Total=13 # BEAM-3:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C12 C13 C14 E02 E03 E04 S01 S02 S03 W01 W02 W03 W04 Total=22 # BEAM-3:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 S01 S02 S03 W01 W02 W03 W04 Total=23 --------------------------------------------- data location :gwbh7,8,9: /data3/gpuuser/40_063_data3_28may2021/* and /data7/gpuuser/40_063_data7_28may2021/*