GTAC Observation Log 1. Date : 02/10/2015 2. Observation Sr. No. : 8102 3. Observer : Jayaram Narayanan Chengalur, Simon Pustilnik 4. Observer's Email : chengalur@ncra.tifr.res.in, sap@sao.ru 5. Project Name : HI observations of a complete sample of gas-rich void galaxies 6. Project Code : 28_048 7. Operator(s) : Sachin 8. Command File : /odisk/gtac/cmd/chengalu/u4148.cmd 9. LTA File : /gsbifrdata1/02oct/28_048_02oct2015.lta 10. LogFlag File : /odisk/online1/logflags/28_048.FLAGS.10 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1406.5835 MHz ,RF2 : 1406.5835 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 61.5835 MHz, IVLO2 : 61.5835 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 : 16.666666 MHz 24. Final BW : 4 MHz; Step # 2 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 138.4165 28. LO5 -2 : 166.5835 29. Frequency Parameters (TPA) : 1406.5835 1406.5835 1345 1345 61.5835 61.5835 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :23 32. Name of Non-Working Antennas (with reason for each) : W04 : MCM 5 time C09 : LO problem C01 : Taken for Maintenance C00 : Servo problem. C08 : ABC timed out. C12 : Servo problem. S01 : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 02 Oct 2015 03:00:00 - 02 Oct 2015 05:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :23 37. Comments (During Observations) : 02:59 : Started scn on 3C48 for 10 mins. 03:13 : Started command file. 05:49 : Stopped command file. 05:51 : Started scan 3C48 for 10 mins. 06:01 : Stopped scan on 3C48 and closed observation session.