GTAC Observation Log 1. Date : 22/12/2020 2. Observation Sr. No. : 12715 3. Observer : Yogesh Maan, BHAL CHANDRA JOSHI 4. Observer\'s Email : ymaan4@gmail.com, bcj@ncra.tifr.res.in 5. Project Name : DDT observation 6. Project Code : ddtC161 7. Operator(s) : Manisha, Sachin 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata1/22dec/ddtc161_22dec2020_tgc_gsb.lta, /gsbifrdata1/22dec/ddtc161_22dec2020_pntg_gsb.lta, /gwbifrdata1/22dec/ddtc161_22dec2020_tgc_gwb.lta, /gwbifrdata1/22dec/ddtc161_22dec2020_gwb.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 :23 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C06 : Feed problem. C14 : Feed problem. W02 : Feed problem. W06 : Feed problem. E06 : All MCM time out W03 : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 22 Dec 2020 14:00:00 - 22 Dec 2020 15:10:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :23 37. RFI Status : 38. Comments (During Observations) : GPU_PFB,0 GSB_CHAN_NUM,0:255:1 GSB_ACQ_BW,33.333333 GSB_FINAL_BW,0 GPU_PFB_TAPS,16 GSB_ENV,1 GPU_CHAN_NUM,0:1023:1 GPU_BEAM_S,0 GSB_STOKES,2 GSB_CNTRL,1 GPU_EDGE_FRQ,0 GSB_BEAM_1,0:1 GSB_BEAM_2,0:1 GPU_BEAM_3,0:1 GPU_BEAM_2,0:1 GPU_BEAM_1,3:1 GPU_BEAM_4,0:1 GSB_GAINEQ,1 GSB_BB_LO,149000000:156000000 GPU_FINAL_BW,1 GPU_VLT_BIT,8 GSB_LTA,8 GPU_FSTOP,1 GPU_FILRFI,0 GPU_BM_INT,8 GSB_HOSTS,0 GPU_DDC,0 GPU_CNTRL,1 GPU_GAINEQ,1 GPU_LTA,8 GSB_FSTOP,1 GPU_CHAN_MAX,1024 GSB_EDGE_FRQ,0 GPU_ENV,1 GPU_HOSTS,2 GPU_MODE,0 GPU_STOKES,2 GSB_CD_MODE,0 GSB_CHAN_MAX,256 GPU_TPA,0 GPU_ACQ_BW,200.0000 GPU_BEAM_BIT,16 GSB_MODE,0 BANDMASK,3 GPU_BEAM4_DATASERVER,gwbh10 CORRMASK,8 ANTENNAMASK,3fffffff ------------------------------------------------------------------------ # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 W01 Total=16 # BEAM-1:175 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 W01 Total=16 ------------------------------------------------------------------------- 14:03:03 : Started scan on 1459+716 for ~ 2.14748 min. 14:06:04 : Started scan on 1459+716 for ~ 1.07374 min. 14:16:12 : Started scan on 1822-096 for ~ 0.53687 min. 14:18:02 : Started scan on 1822-096 for ~ 2.14748 min. 14:20:46 : Started scan on 1822-096 for ~ 3.75809 min. 14:30:25 : Started scan on J1809-1943 for ~ 2.41592 min. 14:34:34 : Started scan on J1809-1943 for ~ 35 min. 15:11:24 : Started scan on B1822-09 for ~ 1.70009 min. 15:16:08 : Started scan on B1822-09 for ~ 1.78957 min. 15:19:15 : Started scan on 1822-096 for ~ 2.058 min. 15:27:47 : Started scan on 3C48 for ~ 0.715827 min. 15:28:55 : Started scan on 3C48 for ~ 1.2527 min. 15:32:02 : Started scan on 3C48OFF for ~ 1.2527 min. --------------------------------------------------------- 15:33:00 : Stopped scan and observation closed.