GTAC Observation Log 1. Date : 13/06/2015 2. Observation Sr. No. : 7842 3. Observer : Emmanouil Papastergis, Elizabeth A.K. Adams, J.M. vanderHulst, Riccardo Giovanelli, Martha P Haynes, Jayaram Narayanan Chengalur, Gregory Hallenbeck 4. Observer's Email : papastergis@astro.rug.nl, betsey@astro.cornell.edu, vdhulst@astro.rug.nl, riccardo@astro.cornell.edu, haynes@astro.cornell.edu, chengalur@ncra.tifr.res.in, ghallenbeck@astro.cornell.edu 5. Project Name : %latex% An accurate measurement of the Baryonic Tully-Fisher Relation with very gas-dominated galaxies ($M_{gas}/M_\\ast \\gtrsim 3$) 6. Project Code : 28_025 7. Operator(s) : Nilesh, Surender 8. Command File : /odisk/gtac/cmd/28_025/obs_13jun15.cmd 9. LTA File : /gsbifrdata/13jun/28_025_13jun2015.lta 10. LogFlag File : /odisk/online1/logflags/28_025.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1406.8501 MHz ,RF2 : 1406.8501 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 61.8501 MHz, IVLO2 : 61.8501 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1 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 : 16.666666 MHz 24. Final BW : 4 MHz; Step # 1 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 138.1499 28. LO5 -2 : 166.8501 29. Frequency Parameters (TPA) : 1406.8501 1406.8501 1345 1345 61.8501 61.8501 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :24 32. Name of Non-Working Antennas (with reason for each) : C05,S02,S06 : Servo problem. W06 : No Fringe. S04 : MCM 5 time out. W05 : Mechanical work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 13 Jun 2015 12:40:00 - 13 Jun 2015 20:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 12:40 : Started settings. 12:55 : Started scan on 3c48 for ~15 min. 13:25 : Started command file. 14:16 : S02 started working. 15:07 : S06 started working. 16:30 : W06 Started working. 16:49 : W05 released for observation. 17:10 : W03 ABC reset. MCM 5 timeout. 19:00 : W03 started working. 19:45 : Started scan on 3C286. 20:00 : Observation stopped.