GTAC Observation Log 1. Date : 16/04/2010 2. Observation Sr. No. : 4814 3. Observer : Ishwar Chandra 4. Observer's Email : ishwar@ncra.tifr.res.in 5. Project Name : LBDS-GRS 6. Project Code : 18_086 7. Operator(s) : Amruta, Navanath, Nilesh, Rupsingh, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/ishwar/18_086a.cmd 9. LTA File : /rawdata/16apr/18_086_16apr2010.lta, /rawdata1/16apr/18_086_16apr2010.ltb 10. GSB File : /gsbifrdata/16apr/18_086_16apr2010_gsb.lta 11. LogFlag File : /odisk/online1/logflags/18_086.FLAGS.3 ANTENNA SETTINGS : 12. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1280 MHz ,RF2 : 1280 MHz, SA1 : 0 dB, SA2 : 0 dB 13. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1210 MHz, ILO2 : 1210 MHz, IVLO1 : 70 MHz, IVLO2 : 70 MHz 14. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON 15. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 1280 1280 1210 1210 70 70 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :25 20. Name of Non-Working Antennas (with reason for each) : C01 : Off mode C03 : Painting. C14 : Servo problem. E04 : Painting. W03 : LO unlocked 21. Note for Backup :-- 22. Start and End Time of Obs.(IST): 14:00 - 01:00 23. ONLINE Machine : Shivneri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : GHB 2S data file : /rawdata/16apr/18_086_16apr2010_2s.lta, /rawdata1/16apr/18_086_16apr2010_2s.ltb, GSB 2S data file : /gsbifrdata/16apr/18_086_16apr2010_gsb_2s.lta ------------------------------------------- 13:45 : Started setup. 14:00 : Corr problem. 14:40 : Corr problem solved. 14:44 : Started scan on 3C147. 14:58 : Stopped scan. 15:01 : '/odisk/gtac/cmd/ishwar/18_086a.cmd' command file started. 15:58 : C14 started working. 18:00 : C03 released for observation. 19:00 : E04 released for obs. 00:40 : Stopped command file. 00:44 : Started scan on 3c286 ~15min. 01:00 : Stopped observation session.