GTAC Observation Log 1. Date : 21/04/2019 2. Observation Sr. No. : 11004 3. Observer : BHAL CHANDRA JOSHI, Mayuresh Surnis, Yogesh Maan, Manjari Bagchi, Periasamy K. Manoharan 4. Observer's Email : bcj@ncra.tifr.res.in, mayuresh.surnis@mail.wvu.edu, maan@astron.nl, manjari.bagchi@gmail.com, mano@ncra.tifr.res.in 5. Project Name : Multi-band low frequency monitoring of the Magnetar XTE 1810-197 6. Project Code : 36_082 7. Operator(s) : Nilesh 8. Command File : /odisk/gtac/cmd 9. LTA File : /gwbifrdata1/21apr/36_082_band3_21apr2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/36_082.FLAGS.1 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 : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : W06 : ABC time out. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 Apr 2019 03:00:00 - 21 Apr 2019 05:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : 03:00 : Started settings. ------------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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 36_082 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 16 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 03:05 : Started observation setup through TGC. 03:35 : TGC could not switching source coordinates from command file as mentioned. so switched control back to old ONLINE. 03:36:09 : Started scan on 1822-096 for ~ 2.14748 min. 03:40:55 : Started scan on 1822-096 for ~ 2.5054 min. 03:44:09 : Started scan on 1822-096 for ~ 2.32644 min. 03:48:51 : Started scan on B1742-30 for ~ 3.13174 min. 03:54:50 : Started scan on 1822-096 for ~ 2.59487 min. 03:57:43 : Started scan on 1822-096 for ~ 1.96852 min. 04:01:04 : Started scan on B1742-30 for ~ 2.14748 min. 04:04:18 : Started scan on J1809-1943 for ~ 4.92131 min. 04:10:00 : Started scan on B1742-30 for ~ 2.23696 min. 04:14:05 : Started scan on J1809-1943 for ~ 30.2437 min. 04:49:00 : Started scan on 3C286 for ~ 2.058 min. 04:51:16 : Started scan on 3C286 for ~ 1.07374 min. 04:53:14 : Started scan on 3C286OFF for ~ 1.16322 min. 04:55 : Stopped command file and observations closed.