GTAC Observation Log 1. Date : 26/04/2016 2. Observation Sr. No. : 8533 3. Observer : Nimisha G. Kantharia 4. Observer's Email : ngk@ncra.tifr.res.in 5. Project Name : 21cm HI spectral line observations of NGC 5903\r\n 6. Project Code : 30_020 7. Operator(s) : Navnath, Sachin, Surender 8. Command File : /odisk/gtac/cmd/ngk/30_020/obs.cmd 9. LTA File : /gsbifrdata1/25apr/30_020_25apr2016.lta 10. LogFlag File : /odisk/online1/logflags/30_020.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1402 MHz ,RF2 : 1402 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1340 MHz, ILO2 : 1340MHz , IVLO1 : 62 MHz, IVLO2 : 62 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 : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 16.666666 MHz 24. Final BW : 16.666666 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 1402 1402 1340 1340 62 62 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C01 : : Taken for BLDC. E06 : : Mech work. S01 : : CST painting. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 25 Apr 2016 22:00:00 - 26 Apr 2016 06:45:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 22:00 : Started set-up. 22:16 : Power eq done on 3C286. 22:18 : Started command file. /odisk/gtac/cmd/ngk/30_020/obs.cmd 06:27 : Started scan on 3C48 for 15min. 06:43 : Observation session over. --------------------------------------------