GTAC Observation Log 1. Date : 16/06/2017 2. Observation Sr. No. : 9491 3. Observer : Kenda Knowles, Huib T Intema, Neeraj Gupta, Matt Hilton, Kavilan Moodley, Sinenhlanhla Precious Sikhosana, Andrew Jordan Baker, Vijaysarathy Bharadwaj, John P. Hughes, Erik Reese, Cristobal Sifon, Jon Sievers, Richard J Bond, Nick Battaglia 4. Observer's Email : kendaknowles.astro@gmail.com, intema@strw.leidenuniv.nl, ngupta@iucaa.in, hiltonm@ukzn.ac.za, moodleyk41@ukzn.ac.za, sneprec@gmail.com, ajbaker@physics.rutgers.edu, bharadwaj.astro88@gmail.com, jph@physics.rutgers.edu, ereese@vcccd.edu, sifon@astro.princeton.edu, Sieversj@ukzn.ac.za, bond@cita.utoronto.ca, nbatta@cita.utoronto.ca 5. Project Name : Low frequency radio study of a complete mass-selected sample of SZ clusters from ACTPol 6. Project Code : 32_016 7. Operator(s) : Deepak, Shilpa, Surender 8. Command File : /odisk/gtac/cmd/32_016/16jun17/obs_16jun.cmd 9. LTA File : /gsbifrdata1/16jun/32_016_16jun2017.lta, /gwbifrdata2/16jun/32_016_16jun2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/32_016.FLAGS.7 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , 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 : Full_Stokes 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) : 306 306 255 255 51 51 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) : C04 : MCM-5 timeout. C08 : All MCM timeout. C13 : Servo problem. E04 : 175pol no fringe at GWB. E05 : No fringe. S02 : Chksum error at GAB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 16 Jun 2017 04:00:00 - 16 Jun 2017 09:30:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :22 37. Comments (During Observations) : ------------GWB Setting---------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Full_Stokes GPU_RF4 : 500 500 GCODE4 : 32_016 --------------------------------------------------------------------------- 04:00 : Started settings. 04:17 : Started scan on 3C48 for 15min. 04:36 : '/odisk/gtac/cmd/32_016/16jun17/obs_16jun.cmd' command file started. 05:30 : S04 applied brakes. 05:52 : S04 started working. 07:37 : C14 Taken for Mech work. 08:16 : E04 Servo Problem. 08:00 : W02 Chksum error. 09:02 : Stopped command file. 09:11 : Started scan on 3C48. 09:30 : Stopped scan and observing session over.