GTAC Observation Log 1. Date : 22/02/2016 2. Observation Sr. No. : 8433 3. Observer : Poonam Chandra, Divya Oberoi 4. Observer's Email : poonam@ncra.tifr.res.in, div@ncra.tifr.res.in 5. Project Name : Study of the remarkable magnetic “lighthouse” Bp star\r\n HD 133880 with the uGMRT 6. Project Code : DDTU07 7. Operator(s) : Nilesh, Sachin, Surender 8. Command File : /odisk/gtac/cmd/poonam/ugmrt-uga.07/22feb2016/obs.cmd 9. LTA File : /gsbifrdata1/22feb/ddtu07_22feb2016.lta.1, /gsbifrdata1/22feb/ddtu07_22feb2016.lta 10. LogFlag File : /odisk/online1/logflags/DDTU07.FLAGS.1, /odisk/online1/logflags/DDTU07.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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 : 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) : 1409 1409 1460 1460 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :25 32. Name of Non-Working Antennas (with reason for each) : C02 : : MCM 5 time out. C08 : : BLDC installation work. E05 : : CST Painting. C01 : : Fringe drops in between observation. E06 : : Low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 22 Feb 2016 05:50:00 - 22 Feb 2016 09:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :25 37. Comments (During Observations) : 05:55 : Started settings. 06:13 : Started command file. '/odisk/gtac/cmd/poonam/ugmrt-uga.07/22feb2016/obs.cmd'. 06:30 : GWB hanged, and ACQ got killed. Halted GSB and GWB Both. 06:57 : Restarted command file. 07:09 : GWB hanged, and ACQ got killed. 07:16 : Restarted GWB. 08:00 : GWB hanged, and ACQ got killed. 08:08 : Restarted GWB. 08:38 : Stopped command file. 08:42 : Started scan on 3C286. 09:00 : Stopped scan and observing session is over.