GTAC Observation Log 1. Date : 13/03/2020 2. Observation Sr. No. : 11973 3. Observer : Arpita Choudhary, BHAL CHANDRA JOSHI, Manjari Bagchi, Abhimanyu Susobhanan, Dhruv Pathak, LANKESWAR DEY, Shantanu Desai, Krishnakumar MA, Mayuresh Surnis, Yogesh Maan, Suryarao Bethapudi, Neelam Dhanda Batra, SAICHAITANYA SUSARLA, Gopakumar Achamveedu, Yashwant Gupta, Avishek kumar Basu, Periasamy K. Manoharan, Prabu Thiagaraj 4. Observer\'s Email : arp.astro@gmail.com, bcj@ncra.tifr.res.in, manjari.bagchi@gmail.com, s.abhimanyu@tifr.res.in, pathakdhruv9786@gmail.com, LANKY441@gmail.com, shntn05@gmail.com, kk.ambalappat@gmail.com, mayuresh.surnis@mail.wvu.edu, maan@astron.nl, ep14btech11008@iith.ac.in, neelam.dhanda@gmail.com, saichaitanya16@iisertvm.ac.in, gopu.tifr@gmail.com, ygupta@ncra.tifr.res.in, avishek@ncra.tifr.res.in, mano@ncra.tifr.res.in, prabu@rri.res.in 5. Project Name : A Study of possible profile mode changes in the millisecond pulsar J2124-3358 6. Project Code : 37_013 7. Operator(s) : Navnath, Nilesh 8. Command File : /odisk/gtac/cmd/37_013/13mar20/obs.cmd 9. LTA File : /gwbifrdata2/13mar/37_013_13mar2020_suba4_b4.lta, /gwbifrdata2/13mar/37_013_13mar2020_suba3_b3.lta 10. LogFlag File : 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 : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C03 : : Maintaince W01 : feed jam 33. Note for Backup :psr data on gwbh7 and gwbh10 : /data4 and /data3 /data3/gpuuser/37_013A_data3_13mar2020: /data4/gpuuser/37_013A_data3_13mar2020: 34. Start and End Time of Obs.(IST): 13 Mar 2020 08:00:00 - 13 Mar 2020 10:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. Comments (During Observations) : # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C02 C05 C06 C09 C11 C12 C13 C14 Total=9 # BEAM-1:175 :: C01 C02 C05 C06 C09 C11 C12 C13 C14 Total=9 # BEAM-2:130 :: Total=0 # BEAM-2:175 :: Total=0 # BEAM-3:130 :: Total=0 # BEAM-3:175 :: Total=0 # BEAM-4:130 :: C00 C04 C08 C10 E02 E03 S01 S02 S03 W02 W03 Total=11 # BEAM-4:175 :: C00 C04 C08 C10 E02 E03 S01 S02 S03 W02 W03 Total=11 ------------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_RF2 : 1200 1200 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : SUBA2 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 37_013A GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : PA GPU_BM_INT : 4 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 07:30 : Started setup. 07:35 : Started RF,LO,GAB setup for GSB and GWB 07:45 : Started power eq. 07:53 : Started phasing on 3C286. 08:00 : Started cmd file. /odisk/gtac/cmd/37_013/13mar20/obs.cmd 08:03:13 : Started scan on 1822-096 for ~ 1.029 min. 08:04:34 : Started scan on 1822-096 for ~ 0.805306 min. 08:18:19 : Started scan on J1939+2134 for ~ 5.90557 min. 08:27:37 : Started scan on 2225-049 for ~ 1.029 min. 08:28:55 : Started scan on 2225-049 for ~ 0.850045 min. 08:31:02 : Started scan on J2145-0750 for ~ 5.95031 min. 08:38:21 : Started scan on 2225-049 for ~ 1.029 min. 08:39:41 : Started scan on 2225-049 for ~ 0.805306 min. 08:42:35 : Started scan on J2124-3358 for ~ 60.9348 min. 09:48:04 : Started scan on 3C48 for ~ 1.029 min. 09:49:23 : Started scan on 3C48 for ~ 1.78957 min. 09:52:36 : Started scan on 3C48OFF for ~ 1.92379 min. 10:00:00 : Observation session over. -------------------------------------------------------------