GTAC Observation Log 1. Date : 21/09/2015 2. Observation Sr. No. : 8078 3. Observer : Federico Lelli, Stacy McGaugh, Chris Mihos, Marcel Pawlowski 4. Observer's Email : federico.lelli@case.edu, ssm69@case.edu, mihos@case.edu, marcel.pawlowski@case.edu 5. Project Name : Tidal Dwarf Galaxies in NGC 2623: are they free of dark matter? 6. Project Code : 28_019 7. Operator(s) : Deepak, Nilesh, Sachin 8. Command File : /odisk/gtac/cmd/28_019/28_019_obs.cmd 9. LTA File : /gsbifrdata/21sep/28_019_21sep2015.lta 10. LogFlag File : /odisk/online1/logflags/28_019.FLAGS.4, /odisk/online1/logflags/28_019.FLAGS.3 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1383.8075 MHz ,RF2 : 1383.8075 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1325 MHz, ILO2 : 1325MHz , IVLO1 : 58.8075 MHz, IVLO2 : 58.8075 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 # 2 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 141.1925 28. LO5 -2 : 163.8075 29. Frequency Parameters (TPA) : 1383.8075 1383.8075 1325 1325 58.8075 58.8075 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : S02 : BLDC C02 : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 Sep 2015 04:00:00 - 21 Sep 2015 10:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : Observation got delayed by 1h30m due mistake in settings. 05:39 : Started scan on 3C147 for 10mins. 05:50 : Started command file. 09:37 : Stopped command file on source. Due to phase cal at transit we skipped it. 09:42 : Started scan on 3C147 till session end. 10:00 : Stopped scan and closed observation session.