GTAC Observation Log

1. Date : 25/12/2019
2. Observation Sr. No. : 11724
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) : Nilesh
8. Command File : /odisk/gtac/cmd
9. LTA File : /gsbifrdata1/25dec/37_046_suba4_25dec2019_gsb.lta, /gsbifrdata1/25dec/37_046_suba2_25dec2019_gsb.lta, /gwbifrdata2/25dec/37_046_suba4_24dec2019_gwb.lta, /gwbifrdata2/25dec/37_046_suba2_24dec2019_gwb.lta
10. LogFlag File : /odisk/online1/logflags/37_046B.FLAGS.5, /odisk/online1/logflags/37_046A.FLAGS.6

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 :28

32. Name of Non-Working Antennas (with reason for each) :
C11 : : ABC time out.
C12 : : Servo problem.

33. Note for Backup :NOTE : While closing observations, noticed that PA DATA (Pulsar beam data)recorded with 1 stokes only, it was expected to be all 4 stokes, Please consider for Make-up time.


34. Start and End Time of Obs.(IST): 25 Dec 2019 02:45:00 - 25 Dec 2019 05:05:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :28

37. RFI Status :

38. Comments (During Observations) :
02:45 : Started settings.

------------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
--------------------------------


--------------------------------------------------------------------
#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 :: E03 E04 E05 E06 S02 S03 S04 S06 W03 W04 W05 Total=11
# BEAM-1:175 :: E03 E04 E05 E06 S02 S03 S04 S06 W03 W04 W05 Total=11
# BEAM-2:130 :: Total=0
# BEAM-2:175 :: Total=0
# BEAM-3:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C13 C14 E02 S01 W01 W02 W06 Total=17
# BEAM-3:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C13 C14 E02 S01 W01 W02 W06 Total=17
# BEAM-4:130 :: Total=0
# BEAM-4:175 :: Total=0


03:01:00 : Started scan on 3C147 for ~ 4.02653 min.
03:05:27 : Started scan on 3C147 for ~ 4.29496 min.
03:16:18 : Started scan on 0744-064 for ~ 2.14748 min.
03:19:07 : Started scan on 0744-064 for ~ 4.5634 min.

03:21:00 : S01 phase jumps noticed, removed from GAC.

# GWB GAC configuration is as follows : 
# BEAM-1:130 :: E03 E04 E05 E06 S02 S03 S04 S06 W03 W04 W05 Total=11
# BEAM-1:175 :: E03 E04 E05 E06 S02 S03 S04 S06 W03 W04 W05 Total=11
# BEAM-2:130 :: Total=0
# BEAM-2:175 :: Total=0
# BEAM-3:130 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C13 C14 E02 W01 W02 W06 Total=16
# BEAM-3:175 :: C00 C01 C02 C03 C04 C05 C06 C08 C09 C10 C13 C14 E02 W01 W02 W06 Total=16
# BEAM-4:130 :: Total=0
# BEAM-4:175 :: Total=0

03:24:11 : Started scan on 0744-064 for ~ 4.29496 min.
03:29:52 : Started scan on 0744-064 for ~ 91.8048 min.

05:02 : Stopped scan and observations closed.

NOTE : While closing observations, noticed that PA DATA (Pulsar beam data)recorded with 1 stokes only, it was expected to be all 4 stokes, Please consider for Make-up time.