GTAC Observation Log 1. Date : 02/03/2015 2. Observation Sr. No. : 7643 3. Observer : Veena V.S., Sarita Vig, Anandmayee Tej, Nimisha Kantharia, SKGhosh 4. Observer's Email : veenagangothri@gmail.com, sarita@iist.ac.in, anandmayee.tej@gmail.com, ngk@ncra.tifr.res.in, cd@ncra.tifr.res.in 5. Project Name : Mapping of radio recombination lines in the cometary HII region G351.69-1.17 6. Project Code : 27_021 7. Operator(s) : Navnath, Sachin, Shilpa, Surender 8. Command File : /odisk/gtac/cmd/27_021/mar02.cmd 9. LTA File : /gsbifrdata/02mar/27_021_02mar2015.lta 10. LogFlag File : /odisk/online1/logflags/27_021.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1276.4898 MHz ,RF2 : 1276.4898 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1210 MHz, ILO2 : 1210MHz , IVLO1 : 66.4898 MHz, IVLO2 : 66.4898 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 6 MHz,ON, IF-CH2 : 4+14 dB, 6 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 : 2 MHz; Step # 2 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 133.5102 28. LO5 -2 : 171.4898 29. Frequency Parameters (TPA) : 1276.4898 1276.4898 1210 1210 66.4898 66.4898 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C04 : Feed jam (but fringing for this observation). W05 : No feed due to taken for maintenance. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 02 Mar 2015 04:00:00 - 02 Mar 2015 11:08:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : 04:00 : Started doing setup. 04:12 : Started scan on 3C286 for 15 mins. 04:35 : Started command file. 09:50 : E04 taken for painting. 09:57 : W06 mcm 10 time-out. 10:14 : S-arm power failed. 10:38 : S-arm started working. 10:44 : Stopped command file. 10:53 : Started scan on 3c48. 11:08 : Stopped scan and observing session is over.