GTAC Observation Log 1. Date : 16/08/2019 2. Observation Sr. No. : 11342 3. Observer : Arshia Maria Jacob, Karl M. Menten, Nirupam Roy, Sarita Vig 4. Observer's Email : ajacob@mpifr-bonn.mpg.de, kmenten@mpifr.de, roy.nirupam@gmail.com, sarita@iist.ac.in 5. Project Name : Methanol in the centers of the Milky Way and Arp 220 6. Project Code : 36_052 7. Operator(s) : Pramod, Sachin 8. Command File : /odisk/gtac/cmd/36_052/15aug19/obs_15aug19.cmd 9. LTA File : /gwbifrdata1/15aug/36_052_15aug2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.3285 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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) : 591 591 540 540 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) : E04 E05 and E06 : OFC problem W06 : ABC time out 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Aug 2019 20:00:00 - 16 Aug 2019 00:30:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 100.0000 GPU_FINAL_BW : 12.5000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 800 800 GPU_DDCLO4 : 27.9750 27.9750 GPU_SB4 : -1 -1 GCODE4 : 36_052 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 : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 20:00 : Stared set up. 20:38 : Started scan on 3C286. 20:50 : Stopped scan and started command file. '/odisk/gtac/cmd/36_052/15aug19/obs_15aug19.cmd' 00:15 : Closed scan on phase cal and closed command file. 00:35 : Closed observation session after taking 12 mins scan on 3C48.