GTAC Observation Log 1. Date : 22/02/2021 2. Observation Sr. No. : 12924 3. Observer : Sushant Dutta, Veeresh Singh, C.H. IshwaraChandra, Yogesh Wadadekar 4. Observer\'s Email : sushantd@prl.res.in, veeresh.iia@gmail.com, ishwar@ncra.tifr.res.in, yogesh@ncra.tifr.res.in 5. Project Name : uGMRT Observations of Remnant Radio Galaxy Candidates 6. Project Code : 39_030 7. Operator(s) : Navnath, Nilesh, Pramod 8. Command File : /data1/gtac/cmd/39_030/22feb21/obs.py 9. LTA File : /gsbifrdata1/22feb/39_030_22feb2021_gsb.lta, /gwbifrdata1/22feb/39_030_22feb2021_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 : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C05 : Feed problem. C12 : Maintenance. W06 : Painting. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 22 Feb 2021 12:00:00 - 22 Feb 2021 21:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :29 37. RFI Status : 38. Comments (During Observations) : 12:30 : Started settings. Delayed due to various problems and Network issues. ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 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 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 16 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 13:18 : Started scan on 3C48. 13:32 : Stopped scan and started command file. \'/data1/gtac/cmd/39_030/22feb21/obs.py\' 15:18 : NOIE : Scan on source 0323+055 (scan no 10) is not stopped after 5 min. Hence junk data is recorded after 5 minutes.Hence ignore scan no.10. Because scan no. 11 is on same source. 16:30 : C12 and C05 Started working. 17:07 : NOTE : Scan on source G0216-0604 (scan no 18) is not stopped after 12 min.Hence junk data is recorded after 12 minutes.Please ignore data after 12 min. 17:33 : W06 started for working. 21:01 : Stopped command file. 21:13 : Started scan on 3C147. 21:23 : Stopped scan and observation session is over.