GTAC Observation Log 1. Date : 16/01/2018 2. Observation Sr. No. : 10027 3. Observer : Neeraj Gupta, Raghunathan Srianand, Rajeshwari Dutta, Aditya JNHS 4. Observer's Email : ngupta@iucaa.in, anand@iucaa.in, rdutta@iucaa.in, adityaj@iucaa.in 5. Project Name : Blind search of HI 21-cm and OH 18-cm absorbers using uGMRT 6. Project Code : 33_067 7. Operator(s) : Navnath, Nilesh, Pramod 8. Command File : /odisk/gtac/cmd/33_067/14and15jan/obs.cmd 9. LTA File : /gwbifrdata1/15jan/33_067_15jan2018_gwb_1000LO.lta 10. LogFlag File : /odisk/online1/logflags/33_067.FLAGS.3 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , 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 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Servo problem C04 : MCM problem E04 ,C14 : Taken for mechanical work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Jan 2018 16:00:00 - 16 Jan 2018 03:05:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1000 1000 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 33_067 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 : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 16:00 : Started set up. 16:25 : Started command file. '/odisk/gtac/cmd/33_067/14and15jan/obs.cmd' 19:24 : C14 and E04 started working. 20:28 : C04 started working. 02:45 : Stopped command file and started scan on 3C147. 03:00 : Stopped scan and observation closed.