GTAC Observation Log 1. Date : 07/01/2017 2. Observation Sr. No. : 9115 3. Observer : Reinout Johannes vanWeeren, Huib T Intema, Dharam Vir Lal, Christine Jones, william richard forman, Georgiana Ogrean, Francesco deGasperin, Annalisa Bonafede, Marcus Bruggen, Tracy Clarke 4. Observer's Email : rvanweeren@cfa.harvard.edu, intema@strw.leidenuniv.nl, dharam@ncra.tifr.res.in, cjf@head.cfa.harvard.edu, wrf@cfa.harvard.edu, georgiana.ogrean@gmail.com, astro@voo.it, annalisa.bonafede@hs.uni-hamburg.de, mbrueggen@hs.uni-hamburg.de, tracy.clarke@nrl.navy.mil 5. Project Name : uGMRT Observations of the HST Frontier Fields Clusters 6. Project Code : 31_037 7. Operator(s) : Deepak, Navnath, Pramod, Shilpa 8. Command File : /odisk/gtac/cmd/31_037/obs_06jan_s2.cmd 9. LTA File : /gsbifrdata1/06jan/31_037_06jan2017.lta.1, /gsbifrdata1/06jan/31_037_06jan2017.lta, /gwbifrdata/06jan/31_037_06jan2017_gwb.lta.1, /gwbifrdata/06jan/31_037_06jan2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/31_037.FLAGS.3 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , 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 : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : W03 : Servo problem. C05 : Low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 06 Jan 2017 18:00:00 - 07 Jan 2017 00:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :23 37. Comments (During Observations) : GWB settings : 200MHz bandwidth, 2048 channels, 500 GABLO. GWB Connected antennas : C00 C01 C02 C04 C06 C09 C10 C11 C13 C14 E02 E03 S02 S03 W01 W02 ----------------------------------------------------------------------------- 18:00 : Started settings. 18:25 : Started scan on 3C147 for 20min. 18:56 : '/odisk/gtac/cmd/31_037/obs_06jan_s2.cmd' command file started. 18:56 : W03 started working. 22:45 : C08 got abc reset. 23:22 : Electrical Power glitch. 23:22 : C09,C10,C11,C13,E04 and S01 applied brakes duo to power glitch. From 22:23 to 23:35 : Set up done for reset antennas. 23:35 : Started scan on 0416-188. 23:40 : Stopped scan. 23:47 : Started scan on 3C147. 00:00 : Stopped scan and observation session is over.