GTAC Observation Log 1. Date : 08/07/2020 2. Observation Sr. No. : 12197 3. Observer : BHAL CHANDRA JOSHI, Yashwant Gupta, Manjari Bagchi, Gopakumar Achamveedu, Shantanu Desai, Abhimanyu Susobhanan, Dhruv Pathak, LANKESWAR DEY, Jaikhomba Singha, Arpita Choudhary, Neelam Dhanda Batra, Prabu Thiagaraj, Krishnakumar MA, Yogesh Maan, Mayuresh Surnis, Suryarao Bethapudi, ARUN KUMAR NAIDU, SAICHAITANYA SUSARLA, Avishek kumar Basu, Nobleson Kunjappy, Raghav Prafulla Girgaonkar, Kishalay De, Periasamy K. Manoharan 4. Observer\'s Email : bcj@ncra.tifr.res.in, ygupta@ncra.tifr.res.in, manjari.bagchi@gmail.com, gopu.tifr@gmail.com, shntn05@gmail.com, s.abhimanyu@tifr.res.in, pathakdhruv9786@gmail.com, LANKY441@GMAIL.COM, mjaikhomba@gmail.com, arp.astro@gmail.com, neelam.dhanda@gmail.com, prabu@rri.res.in, kk.ambalappat@gmail.com, maan@astron.nl, mayuresh.surnis@mail.wvu.edu, ep14btech11008@iith.ac.in, arun@ncra.tifr.res.in, saichaitanya16@iisertvm.ac.in, avishek@ncra.tifr.res.in, nobleson.phy@gmail.com, ep17btech11016@iith.ac.in, kde@caltech.edu, mano@ncra.tifr.res.in 5. Project Name : Indian Pulsar Timing Array (InPTA) experiment using the upgraded wideband GMRT and the ORT : 2020 Update 6. Project Code : 38_014 7. Operator(s) : Sachin 8. Command File : /odisk/gtac/cmd/38_014/08jul.cmd 9. LTA File : /gwbifrdata2/08jul/38_014B_band3_08jul2020_gwb.lta, /gwbifrdata2/08jul/38_014A_band5_08jul2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_014B.FLAGS.7, /odisk/online1/logflags/38_014A.FLAGS.7 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_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) : 306 306 255 255 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :25 32. Name of Non-Working Antennas (with reason for each) : C03 : Maintenance C14 : MCM 14 timeout W01 : MCM 5 continuously on S06 : No fringe in GWB S02 : Bad bandshape in GWB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 08 Jul 2020 00:00:00 - 08 Jul 2020 06:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :25 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 1024 GPU_CHAN_NUM : 0:1023:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF3 : 500 500 GPU_DDCLO3 : 0.0000 0.0000 GPU_SB3 : 1 1 GCODE3 : 38_014B GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 38_014A GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : Voltage GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C04 C05 C10 C13 E02 E03 S01 S02 S03 S04 W02 W03 W04 Total=14 # BEAM-1:175 :: C00 C04 C05 C10 C13 E02 E03 S01 S02 S03 S04 W02 W03 W04 Total=14 # BEAM-2:130 :: C01 C02 C06 C08 C09 C11 C12 Total=7 # BEAM-2:175 :: C01 C02 C06 C08 C09 C11 C12 Total=7 00:03:09 : Started scan on 3C286 for ~ 4.83183 min. Pulsar recording for this scan is bad. 00:12:14 : Started scan on 3C286 for ~ 1.029 min. 00:13:39 : Started scan on 3C286 for ~ 1.65535 min. 00:16:35 : Started scan on 3C286OFF for ~ 1.74483 min. 00:22:53 : Started scan on 1822-096 for ~ 1.07374 min. 00:24:15 : Started scan on 1822-096 for ~ 0.850045 min. 00:26:58 : Started scan on J1643-1224 for ~ 55.8345 min. 01:24:40 : Started scan on 1822-096 for ~ 1.07374 min. 01:26:03 : Started scan on 1822-096 for ~ 0.805306 min. 01:28:45 : Started scan on J1909-3744 for ~ 60.8901 min. 02:30:53 : Started scan on 1830-360 for ~ 1.029 min. 02:32:14 : Started scan on 1830-360 for ~ 0.805306 min. 02:35:39 : Started scan on J1713+0747 for ~ 55.7898 min. 03:33:06 : Started scan on 1822-096 for ~ 0.984262 min. 03:34:24 : Started scan on 1822-096 for ~ 0.760566 min. 03:37:30 : Started scan on J1939+2134 for ~ 50.7343 min. 04:31:53 : Started scan on 2225-049 for ~ 1.07374 min. 04:33:14 : Started scan on 2225-049 for ~ 0.805306 min. 04:35:20 : Started scan on J2145-0750 for ~ 50.779 min. 05:33:13 : Started scan on 3C48 for ~ 1.029 min. 05:34:35 : Started scan on 3C48 for ~ 1.70009 min. 05:37:30 : Started scan on 3C48OFF for ~ 1.70009 min. 06:00:00 : Stopped scan and observing session over.