GTAC Observation Log 1. Date : 21/10/2017 2. Observation Sr. No. : 9791 3. Observer : Yashwant Gupta, BHAL CHANDRA JOSHI, Nikhil Vijay Naik, Kishalay De, Yogesh Maan, Manjari Bagchi, Jayanta Roy, Gopakumar Achamveedu 4. Observer's Email : ygupta@ncra.tifr.res.in, bcj@ncra.tifr.res.in, naiknikhil27@gmail.com, ugkishalayde@ug.iisc.in, ymaan@ncra.tifr.res.in, manjari.bagchi@gmail.com, jroy@ncra.tifr.res.in, gopu.tifr@gmail.com 5. Project Name : Towards precision pulsar timing with the upgraded GMRT 6. Project Code : 33_076 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd 9. LTA File : /gwbifrdata1/21oct/33_076_750lo_21oct2017_gwb.lta, /gwbifrdata1/21oct/33_076_500lo_21oct2017_gwb.lta, /gwbifrdata1/21oct/33_076_1460lo_21oct2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/33_076C.FLAGS, /odisk/online1/logflags/33_076B.FLAGS, /odisk/online1/logflags/33_076.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , 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_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 : 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) : 1371 1371 1320 1320 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) : C10 : No fringe. W03 : Servo problem 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 Oct 2017 01:00:00 - 21 Oct 2017 06:40:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 00:00 : Started set up. # Band 3 # sub 2 # C01 C04 C06 W01 S01 ante 5 6 3 20 8 26 cp 0;defs 2;subar 2 # Band 4 # sub 3 # C02 C03 C09 W02 E03 S02 ante 6 5 1 4 13 18 27 cp 0;defs 3;subar 3 # Band 5 # sub 4 # C00 C05 C08 C10 C11 C12 C13 C14 W03 W04 W05 W06 E02 E04 E05 E06 S03 S04 S06 ante 19 7 19 24 12 9 2 11 10 14 15 16 25 17 21 22 23 28 29 30 cp 0;defs 4;subar 4 # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C04 C06 S01 W01 Total=5 # BEAM-1:175 :: C01 C04 C06 S01 W01 Total=5 # BEAM-2:130 :: C00 C05 C08 C11 C12 C13 C14 E02 E04 E05 E06 S03 S04 S06 W04 W05 W06 Total=17 # BEAM-2:175 :: C00 C05 C08 C11 C12 C13 C14 E02 E04 E05 E06 S03 S04 S06 W04 W05 W06 Total=17 # BEAM-3:130 :: C02 C03 C09 E03 S02 W02 Total=6 # BEAM-3:175 :: C02 C03 C09 E03 S02 W02 Total=6 01:17 : Power equalized and phasing done on 3C48. 01:25:17 : Started scan on J0340+4130 for ~ 14.7639 min. 01:50:25 : Started scan on J0340+4130 for ~ 21.2064 min. 02:14:37 : Started scan on 3C48 for ~ 3.22122 min. 02:17:59 : Started scan on 3C48 for ~ 2.41592 min. 02:22:07 : Started scan on J0023+0923 for ~ 27.112 min. 02:53:03 : Started scan on 0440-435 for ~ 3.087 min. 02:56:39 : Started scan on 0440-435 for ~ 1.74483 min. 03:00:34 : Started scan on J0437-4715 for ~ 20.2669 min. 03:28:55 : Started scan on 0534+194 for ~ 1.20796 min. 03:30:33 : Started scan on 0534+194 for ~ 0.805306 min. 03:34:56 : Started scan on J0613-0200 for ~ 20.8037 min. 04:01:10 : Started scan on 3C147 for ~ 1.20796 min. 04:02:49 : Started scan on 3C147 for ~ 0.805306 min. 04:05:24 : Started scan on J0645+5158 for ~ 20.2669 min. 04:33:35 : Started scan on 0744-064 for ~ 1.20796 min. 04:35:18 : Started scan on 0744-064 for ~ 0.805306 min. 04:39:18 : Started scan on J0751+1807 for ~ 20.4011 min. 05:03:11 : Started scan on 0834+555 for ~ 1.20796 min. 05:04:49 : Started scan on 0834+555 for ~ 0.805306 min. 05:08:06 : Started scan on J1012+5307 for ~ 20.2669 min. 05:34:20 : Started scan on 0837-198 for ~ 1.20796 min. 05:35:59 : Started scan on 0837-198 for ~ 0.805306 min. 05:40:22 : Started scan on J1022+1001 for ~ 20.1326 min. 06:04:15 : Started scan on 0837-198 for ~ 1.47639 min. 06:06:07 : Started scan on 0837-198 for ~ 0.805306 min. 06:09:29 : Started scan on J1024-0719 for ~ 21.4748 min. 06:30 : Stopped scan and observation session is over. -----------------------------------------------------------------------