GTAC Observation Log 1. Date : 29/01/2015 2. Observation Sr. No. : 7578 3. Observer : Jonathan Ivor Davies, Walter Gear, Matthew Smith, Suzanne Madden, marcel spencer clemens 4. Observer's Email : jid@astro.cf.ac.uk, Walter.Gear@astro.cf.ac.uk, Matthew.Smith@astro.cf.ac.uk, smadden@cea.fr, marcel.clemens@oapd.inaf.it 5. Project Name : Disentangling Synchrotron, Free-Free and Thermal Dust Emission in Galaxies 6. Project Code : 27_004 7. Operator(s) : Deepak, Nilesh, Sachin 8. Command File : /odisk/gtac/cmd/27_004/obs-21012015.cmd 9. LTA File : /gsbifrdata/21jan/27_004_21jan2015.lta 10. LogFlag File : /odisk/online1/logflags/27_004.FLAGS.7 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 629 MHz ,RF2 : 253 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 680 MHz, ILO2 : 304MHz , 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 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 : 33.333333 MHz; Step # 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 629 253 680 304 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) : E04 : Maintenance W04 : maintenance C10 : 235MHz not available W01 : 235MHz not available C00 : 235MHz no fringe 33. Note for Backup : 34. Start and End Time of Obs.(IST): 20 Jan 2015 23:37:00 - 21 Jan 2015 10:44:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 23:37 : Started scan on 3C147. 23:40 : Data is affected due to ionospheric scintillation. 00:25 : Started command file. 02:45 : Data is affected due to scintillation till 02:45 am. 02:52 : Started scan on 3C286 for 12mins. 03:00 : Restarted command file. 10:23 : Stopped command file. 10:25 : Started scan on 3C286. 10:44 : Stopped scan and observation session over.