GTAC Observation Log 1. Date : 15/03/2019 2. Observation Sr. No. : 10959 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) : Nilesh, Rupsing, Shilpa, Surender 8. Command File : /odisk/gtac/cmd/nissim/egs.cmd 9. LTA File : /gsbifrdata/14mar/35_085_14mar2019.lta, /gwbifrdata1/14mar/35_085_14mar2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_085.FLAGS.6 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 : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : W06 : : ABC time-out. S04 : : All mcm time-out. C04 : : Frequently getting ABC reset. C01 : : Servo Problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 14 Mar 2019 22:00:00 - 15 Mar 2019 08:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :25 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 : 128 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 22:00:00 : Started set-up. 22:23:14 : Started command file with a scan on 3C286 for ~ 7 mins. /odisk/gtac/cmd/nissim/egs.cmd 03:20:00 : Restarted command file with a scan on 3C286 for ~ 7 mins. /odisk/gtac/cmd/nissim/egs.cmd 07:45 : W03 fringe vanished automatically. 07:51 : Stopped command file. 07:52 : Started scan on 3C286. 08:00 : Stopped scan and observing session over.