GTAC Observation Log 1. Date : 19/02/2016 2. Observation Sr. No. : 8425 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 HD 133880 with the uGMRT \r\n 6. Project Code : DDTUGA07 7. Operator(s) : Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/poonam/ugmrt-uga.07/19feb.cmd 9. LTA File : /gsbifrdata1/19feb/ddtuga07_19feb2016.lta.1, /gsbifrdata1/19feb/ddtuga07_19feb2016.lta 10. LogFlag File : /odisk/online1/logflags/DDTUG07.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_lenyadri 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 : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C08 : BLDC work. C12 : Very low fringe. C02 : MCM-5 timeout. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 19 Feb 2016 06:00:00 - 19 Feb 2016 09:12:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 06:20 : Completed setup. GSB LO1 was 1050. 06:23 : Started scan on 3C286. 06:35 : Observer called and changed setup for GSB LO from 1050 to 1460 MHz. Restarted GSB corr. 06:51 : Started command file. 06:55 : C01 fringe automatically dropped. 08:54 : Stopped command file. 08:57 : Started scan on 3C286. 09:12 : Stoppe scan and observing session over.