ASTROSAT CZTI

Data Quality Report

Orbit 05167

Creation date: 2024-06-27T14:52:12.655000
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_214T01_9000000652_05167cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05167cztM0_level2_quad_clean.evt
Size (bytes)458,167,68056,142,720
Size436.9 MB 53.5 MB
Events in quadrant A3,237,341314,357
Events in quadrant B3,532,140319,827
Events in quadrant C3,129,681315,798
Events in quadrant D3,535,152296,393

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135963
B0143002
C0134132
D0148762

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6495841.293303%
B6495841.293303%
C6495530.816012%
D64951302.001540%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7765 6496 6 6 0.08% 0.09%
B 7765 6496 0 0 0.00% 0.00%
C 7765 6496 0 0 0.00% 0.00%
D 7765 6496 74 74 0.95% 1.14%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 0 50 32538 191.11 823 807 166.0
A 4 2 24111 140.36 823 807 166.0
A 13 251 10609 59.04 823 807 166.0
B 15 204 157974 986.49 839 821 159.3
B 4 80 104037 647.91 839 821 159.3
B 12 111 14199 83.98 839 821 159.3
C 1 16 21737 113.45 796 803 184.5
C 13 61 6542 31.1 796 803 184.5
C 14 67 2396 8.63 796 803 184.5
D 13 53 295735 1541.52 783 761 191.4
D 2 33 115390 599.04 783 761 191.4
D 13 105 77059 398.73 783 761 191.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter