GTAC Observation Log 1. Date : 19/11/2015 2. Observation Sr. No. : 8181 3. Observer : Nissim Kanekar 4. Observer's Email : nkanekar@ncra.tifr.res.in 5. Project Name : DDT observation for uGMRT. 6. Project Code : DDTUG05 7. Operator(s) : Navnath, Pramod 8. Command File : /odisk/gtac/cmd/nissim/2340-0053.cmd,, /odisk/gtac/cmd/nissim/0407-4409.cmd,, /odisk/gtac/cmd/nissim/0347-211.cmd,, /odisk/gtac/cmd/nissim/1138\+0428.cmd 9. LTA File : /gsbifrdata/18nov/ddtug05_18nov2015.lta.3, /gsbifrdata/18nov/ddtug05_18nov2015.lta.2, /gsbifrdata/18nov/ddtug05_18nov2015.lta.1, /gsbifrdata/18nov/ddtug05_18nov2015.lta 10. LogFlag File : /odisk/online1/logflags/DDTUG05.FLAGS.8, /odisk/online1/logflags/DDTUG05.FLAGS.7, /odisk/online1/logflags/DDTUG05.FLAGS.6, /odisk/online1/logflags/DDTUG05.FLAGS.5, /odisk/online1/logflags/DDTUG05.FLAGS.4, /odisk/online1/logflags/DDTUG05.FLAGS.3 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 472.3 MHz ,RF2 : 472.3 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 535 MHz, ILO2 : 535MHz , IVLO1 : 62.7 MHz, IVLO2 : 62.7 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 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 : ON 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 16.666666 MHz 24. Final BW : 8 MHz; Step # 6 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 137.3 28. LO5 -2 : 167.7 29. Frequency Parameters (TPA) : 472.3 472.3 535 535 62.7 62.7 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : W03 : Taken for BLDC C11 : CST painting 33. Note for Backup : 34. Start and End Time of Obs.(IST): 18 Nov 2015 19:20:00 - 19 Nov 2015 05:06:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 19:20 : Started set up for 325 MHz. Note : E05 having low fringe in GWB. --------------------------------------------------------------------------- Observation 1 : Line frequency : 465.02 MHz All ALCs ON RF Band : 327 MHz LO(1) : 535 MHz IF BW : 18 MHz LO(5) : 137.3 167.7 LO(4) : 62.7 62.7 MHz Baseband BW : 2.08 MHz Step : 3 Channels : 512 lta : 4 TPA 472.3 472.3 535 535 62.7 62.7 The band should cover 463.9668 MHz - 466.0501 MHz. 19:50 : Started command file. '/odisk/gtac/cmd/nissim/2340-0053.cmd' --------------------------------------------------------------------------- Observation 2 : Line frequency : 487.61 MHz All ALCs ON RF Band : 327 MHz LO(1) : 560 MHz IF BW : 18 MHz LO(5) : 137 168 MHz LO(4) : 63 63 MHz Baseband BW : 2.08 MHz Step : 4 Channels : 512 lta : 4 TPA : 497 497 560 560 63 63 The band should cover 488.6668 MHz - 486.5835 MHz. 23:52 : Started command file. '/odisk/gtac/cmd/nissim/0407-4409.cmd' --------------------------------------------------------------------------- Observation 3 : Line frequency : 481.98 MHz All ALCs ON RF Band : 327 MHz LO(1) : 550 MHz IF BW : 18 MHz LO(5) : 137.3 167.7 LO(4) : 62.7 62.7 MHz Baseband BW : 2.08 MHz Step : 2 Channels : 512 lta : 4 TPA : 487.3 487.3 550 550 62.7 62.7 The band should cover 483.1334 MHz to 481.0501 MHz. 01:46 : Started comman dile. '/odisk/gtac/cmd/nissim/0347-211.cmd' --------------------------------------------------------------------------- Observation 4 : Line frequency : 426.65 MHz All ALCs ON RF Band : 327 MHz LO(1) : 500 MHz IF BW : 18 MHz LO(5) : 138 167 MHz LO(4) : 62 62 MHz Baseband BW : 2.08 MHz Step : 5 Channels : 512 lta : 4 TPA 438 438 500 500 62 62 The band should cover 425.5 - 427.58 MHz 03:52 : Started command file. '/odisk/gtac/cmd/nissim/1138+0428.cmd' 04:51 : Stopped command file. 04:59 : Started scan on 3C147. 05:06 : Stopped scan and observing session over.