GTAC Observation Log 1. Date : 11/01/2020 2. Observation Sr. No. : 11786 3. Observer : Mugundhan Vijayaraghavan, Jackie Villadsen 4. Observer\'s Email : mugundhan@rri.res.in, jrvilladsen@smcm.edu 5. Project Name : Search for Quasi-Periodic Intensity Oscillations in Flare Stars using the uGMRT 6. Project Code : 37_046 7. Operator(s) : Pramod 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/11jan/37_046_suba2_11jan2020_gsb.lta, /gsbifrdata1/11jan/37_046_suba4_11jan2020_gsb.lta, /gwbifrdata1/11jan/37_046_suba2_11jan2020_gwb.lta, /gwbifrdata2/11jan/37_046_suba4_11jan2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/37_046B.FLAGS.8, /odisk/online1/logflags/37_046A.FLAGS.9 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 : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :30 32. Name of Non-Working Antennas (with reason for each) : 33. Note for Backup : 34. Start and End Time of Obs.(IST): 11 Jan 2020 01:00:00 - 11 Jan 2020 03:05:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :30 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF2 : 1460 1460 GPU_DDCLO2 : 0.0000 0.0000 GPU_SB2 : 1 1 GCODE2 : 37_046B GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 37_046A GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : PA GPU_BM_INT : 128 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 01:00 : Started set up. Split the antennas as follows. -------------------------------------------------------------------- #1420 MHz# sub 2 # W03 W04 W05 E03 E04 E05 E06 S02 S03 S04 S06 ante 11 14 15 16 18 21 22 23 27 28 29 30 cp 0;defs 2;subar 2 #1420 MHz# sub 4 # C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 W01 W02 W06 E02 S01 ante 19 7 6 5 1 3 19 20 24 4 12 9 2 11 10 8 13 25 17 26 cp 0;defs 4;subar 4 -------------------------------------------------------------------- NOTE : 1. SUBA#2 tracking to phase calibrator only for whole observing time. 2. SUBA#4 tracking to phase cal + source during observations as instructed. # GWB GAC configuration is as follows : # BEAM-1:130 :: Total=0 # BEAM-1:175 :: Total=0 # BEAM-2:130 :: E03 E04 E05 E06 S02 S03 S04 S06 W03 W04 W05 Total=11 # BEAM-2:175 :: E03 E04 E05 E06 S02 S03 S04 S06 W03 W04 W05 Total=11 # BEAM-3:130 :: Total=0 # BEAM-3:175 :: Total=0 # BEAM-4:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 W02 Total=18 # BEAM-4:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 W02 Total=18 01:35 : Started power equalized and phasing done on 3C147 and record pulsar data for 3C147. Move antennas to 0744-064. As phase calibrator was 230d away from 3C147. Hence it took more time for slewing. 01:59 : Phasing done on 0744-096 and record pulsar data for 0744-096. 02:09 : Started scan on 0744-096 and YZCMI for sub-array 2 and sub-array 4 respectively with pulsar recording.. 03:00 : Stopped scan and observation session is over.