GTAC Observation Log 1. Date : 22/11/2019 2. Observation Sr. No. : 11613 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) : Pramod, Sachin 8. Command File : /odisk/gtac/cmd/37_013/22Nov2019.cmd 9. LTA File : /gwbifrdata1/22nov/37_013_band3_suba3_22nov2019_gwb.lta, /gwbifrdata2/22nov/37_013_band4_suba4_22nov2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/37_013B.FLAGS.3, /odisk/online1/logflags/37_013A.FLAGS.3 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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) : 591 591 540 540 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C04 : Taken for mechanical work C11 : Taken for touch up painting. C14 : Taken for mechanical work. W03 : FE problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 22 Nov 2019 15:00:00 - 22 Nov 2019 17:10:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 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 : 37_013B 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 : PA GPU_BEAM_4 : OFF 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 -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C02 C03 C05 C06 C09 C12 C13 Total=8 # BEAM-1:175 :: C01 C02 C03 C05 C06 C09 C12 C13 Total=8 # BEAM-2:130 :: Total=0 # BEAM-2:175 :: Total=0 # BEAM-3:130 :: C00 C08 C10 E02 E03 S01 S02 S03 W01 W02 Total=10 # BEAM-3:175 :: C00 C08 C10 E02 E03 S01 S02 S03 W01 W02 Total=10 # BEAM-4:130 :: Total=0 # BEAM-4:175 :: Total=0 # sub 3 # C01 C02 C03 C05 C06 C09 C11 C12 C13 C14 ante 10 6 5 1 19 20 4 9 2 11 10 cp 0;defs 3;subar 3 # sub 4 # C00 C04 C08 C10 W01 W02 W03 W04 W05 W06 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06 ante 20 7 3 24 12 8 13 14 15 16 25 17 18 21 22 23 26 27 28 29 30 cp 0;defs 4;subar 4 15:00 : Started set up. 15:15 : Power equalized and phasing done on 1822-096. 15:20 : Started command file. '/odisk/gtac/cmd/37_013/22Nov2019.cmd' 16:47 : C01 applied EL brake.Hence removed from GAC. 17:03 : Stopped command file and observation session is over.