GTAC Observation Log 1. Date : 20/03/2019 2. Observation Sr. No. : 10972 3. Observer : Apurba Bera, Nissim Kanekar, Jayaram Narayanan Chengalur, Jasjeet Singh Bagla 4. Observer's Email : apurba@ncra.tifr.res.in, nkanekar@ncra.tifr.res.in, chengalur@ncra.tifr.res.in, jasjeet@iisermohali.ac.in 5. Project Name : %latex%A deep uGMRT survey for HI 21 cm emission from galaxies at $z \\\\leq 0.4$ 6. Project Code : 35_085 7. Operator(s) : Deepak, Navnath, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/nissim/egs.cmd 9. LTA File : /gsbifrdata1/19mar/35_085_19mar19_gsb.lta, /gwbifrdata1/19mar/35_085_19mar19_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_085.FLAGS.8 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1399 MHz ,RF2 : 1399 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1450 MHz, ILO2 : 1450MHz , 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_lenyadri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 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 : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1399 1399 1450 1450 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C00 : : Feed jammed. S04 : : Low fringe. C01 : : Low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 19 Mar 2019 22:00:00 - 20 Mar 2019 08:12:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 970 970 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 35_085 GPU_CNTRL : ONLINE 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 : OFF GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 22:26 : Started scan on 3C286 for ~ 6.71088 min. 22:34 : Started command file. 04:48 : S02 got abc reset. 05:02 : S02 started working. 05:09 : Stopped command file. 05:12 : Restarted command file. 05:21 : S04 started working. 06:19 : S02 frequently getting abc reset. 08:12 : Stopped command file and observing session over.