GTAC Observation Log 1. Date : 28/04/2021 2. Observation Sr. No. : 13055 3. Observer : Ajithkumar,Shweta Gupta, Manisha Samble 4. Observer\'s Email : swetag.sga@gmail.com; manisha@gmrt.ncra.tifr.res.in; ajit@ncra.tifr.res.in 5. Project Name : GAB TEST 6. Project Code : TST2351 7. Operator(s) : Shriram 8. Command File : /odisk/gtac/cmd/shriram/cont_trk.py 9. LTA File : /gwbifrdata/28apr/tst2351_400MHz_28apr2021_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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) : 1409 1409 1460 1460 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :24 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C06 : maintenance C14 : 130 pol no fringe. W03 : Feed not rotating. W05 : Servo disconnected. S01 : Feed not rotating. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 28 Apr 2021 16:00:00 - 28 Apr 2021 18:16:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :24 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1500 1500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : TST2351 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 16 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 16:00 : Started settings. 16:20 : Started power equalization on 3C147. 16:50 : Power not equalized after 3 iterations. 17:00- 17:25 : Power equalized manually using antenna swap data 17:30 : Started command file. 18:17 : Command file stopped and test over.