GTAC Observation Log 1. Date : 27/07/2017 2. Observation Sr. No. : 9609 3. Observer : Y. Gupta 4. Observer's Email : ygupta@ncra.tifr.res.in 5. Project Name : System Test 6. Project Code : TST1695 7. Operator(s) : Navnath 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata1/27jul/tst1695_26jul2017_1420.lta, /gwbifrdata2/27jul/tst1695_26jul2017_fs_1460.lta, /gwbifrdata2/27jul/tst1695_26jul2017_1460.lta.1, /gwbifrdata2/27jul/tst1695_26jul2017_1460.lta 10. LogFlag File : /odisk/online1/logflags/TEST.FLAGS.4474 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , 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) : 1454 1454 1505 1505 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : S03 : : applied elevation brake W03 : : RFI S01 : : ABC time out W04 : : Maintenance 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Jul 2017 01:00:00 - 27 Jul 2017 04:10:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : data :- gpuuser@gwbh7 ~]$ ls -1tr /data6/gpuuser/27jul2017/tst1695* gpuuser@gwbh8 ~]$ ls -1tr /data6/gpuuser/27jul2017/tst1696* --------------------------------------------------------------- 01:00 : Started steup. Part I : LTA=4, ACQ BW =200 Mhz, 8k Channels, Total Intensity, IA-PA with Beam Int =32. GAB LO=1460 Mhz, OF att = 2-2 dBm. 01:15 : Started power eq @ 150 Counts. 01:30 : Started phasing on 3C48. 01:40 : Phasing on 3C468.1 01:50 : Started scan on pulsar B1929+10 for 10 min. 02:05 : Started setup for part II LTA=8, ACQ BW =200 Mhz, 8k Channels, Full Stokes, IA-PA with Beam Int =32. GAB LO=1460 Mhz, OF att = 2-2 dBm. GWB chain stooped.. Packets dropped -------------------------------------------------------------------------- 2017-07-27-02:09:32 012755] WARN: Dropped 42860 packets on node 3 on port 0 2: Not keeping up. curr 31.68%, next 28.34% | 9220137 [2017-07-27-02:09:32 031424] WARN: Dropped 44789 packets on node 2 on port 0 2: Not keeping up. curr 31.60%, next 27.98% | 9220309 [2017-07-27-02:09:32 032987] WARN: Dropped 44843 packets on node 2 ----------------------------------------------------------------------- 02:05 : Restarted GWB with LTA=16. 02:26 : Started phasing on 3C48. 02:26:01 : Started scan on 3C48 for ~ 16.2851 min. 02:48:06 : Started scan on B1929+10 for ~ 11.4532 min. 03:03:32 : Started scan on 3C468.1 for ~ 6.6214 min. 03:14:06 : Started scan on B1929+10 for ~ 17.8957 min. 03:36:10 : Started scan on 3C468.1 for ~ 3.22122 min. 03:40:38 : Started scan on B1929+10 for ~ 22.5486 min. 03:50: : Scan stopped. ------------------------------------------------------------- BEAM-1:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S02 S04 S06 W01 W02 W05 W06 Total=26 # BEAM-1:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E05 E06 S02 S04 S06 W01 W02 W05 W06 Total=26 # BEAM-2:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S02 W01 W02 Total=19 # BEAM-2:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 E03 S02 W01 W02 Total=19 ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 16 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : TST1695 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : IA GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 32 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF --------------------------------