GTAC Observation Log 1. Date : 23/03/2018 2. Observation Sr. No. : 10174 3. Observer : BHAL CHANDRA JOSHI, Manjari Bagchi, Gopakumar Achamveedu, Dhruv Pathak, Krishnakumar MA, Mayuresh Surnis, Yogesh Maan, ARUN KUMAR NAIDU, Periasamy K. Manoharan, Prakash Arumugasamy, Shantanu Desai, Suryarao Bethapudi, Abhimanyu Susobhanan 4. Observer's Email : bcj@ncra.tifr.res.in, manjari.bagchi@gmail.com, gopu.tifr@gmail.com, pathakdhruv9786@gmail.com, kkma@ncra.tifr.res.in, mpsurnis@ncra.tifr.res.in, ymaan@ncra.tifr.res.in, arun@ncra.tifr.res.in, mano@ncra.tifr.res.in, prakash@ncra.tifr.res.in, shntn05@gmail.com, ep14btech11008@iith.ac.in, s.abhimanyu@tifr.res.in 5. Project Name : Extending timing baseline for the ORT-GMRT Indian Pulsar Timing Array (InPTA) experiment 6. Project Code : 33_062 7. Operator(s) : Deepak, Pramod, Rupsing, Shilpa 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/23mar/33_062_23mar2018_gsb.lta, /gwbifrdata1/23mar/33_062_23mar2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/TEST.FLAGS.4661, /odisk/online1/logflags/33_062.FLAGS.8 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1292 MHz ,RF2 : 1292 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1230 MHz, ILO2 : 1230MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,OFF, IF-CH2 : 4+14 dB, 16 MHz,OFF 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 : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : Volt 23. ACQ BW : 16.666666 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 1292 1292 1230 1230 62 62 30. Integration Time : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : E06 : High temperature, ABC timeout. W03 : Frequently applying elevation brakes. E02 : 175pol self power jump in both GSB and GWB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 23 Mar 2018 02:00:00 - 23 Mar 2018 11:20:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :26 37. 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 : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1340 1340 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 33_062 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : Voltage GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF --------------------------------------------------------------------------- # GSB GAC configuration is as follows : # BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E03 S01 S02 W01 W02 Total=19 # BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E03 S01 S02 W01 W02 Total=19 --------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E03 S01 S02 W01 W02 Total=19 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E03 S01 S02 W01 W02 Total=19 --------------------------------------------------------------------------- 02:00 : Started settings. 02:30 : Power equalized on 1626-298 @ 200 counts for GSB and 150 counts for GWB. 02:48 : Phasing done on 1822-096. 02:55 : Started scan on J1600-3053 for ~ 46.5735 min. 03:48 : Phasing done on 1822-096. 03:48 : C13 abc time-out, so removed from GAC. --------------------------------------------------------------------------- # GSB GAC configuration is as follows : # BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C14 E03 S01 S02 W01 W02 Total=18 # BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C14 E03 S01 S02 W01 W02 Total=18 --------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C14 E03 S01 S02 W01 W02 Total=18 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C14 E03 S01 S02 W01 W02 Total=18 --------------------------------------------------------------------------- 03:49 : Started scan on J1643-1224 for ~ 46.3722 min. 04:41 : Phasing done on 1822-096. 04:45 : Started scan on J1713+0747 for ~ 41.339 min. 05:32 : Phasing done on 1822-096. 05:34 : Started scan on B1855+09 for ~ 13.8244 min. 06:11 : phasing done on 1822-096. 06:16 : Started scan on J1909-3744 for ~ 43.6878 min.. 06:16 to 06:25 : Satellite observed on J1909-3744 (GSAT0210). 07:04 : Phasing done on 1822-096. 07:10 : Started scan on B1937+21 for ~ 15.34218 min. 07:30 : Phasing done on 1822-096. 07:36 : Started scan on J2124-3358 for ~ 45.92547 min. 07:47 : C14 removed from GAC. 08:30 : Phasing done on 1822-096. 08:34 : Problem for GWB and hence voltage data is not recorded. 08:36 : Started scan on J2145-0750 for ~ 40.8022 min. 09:22 : Phasing done on 1822-096. 09:28 : Started scan on J2317+1439 for ~ 30.87 min. 10:01 : Started scan on 3C48 for ~ 1.27507 min. 10:04 : Started scan on 3C48 for ~ 1.5435 min. 10:05 : Stopped scan and observation session is over.