ASTROSAT CZTI

Data Quality Report

Orbit 23013

Creation date: 2024-06-27T18:48:41.710262
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/AS1A08_004T03_9000003400_23013cztM0_level2.evt modeM0/AS1A08_004T03_9000003400_23013cztM0_level2_quad_clean.evt
Size (bytes)523,503,36092,041,920
Size499.3 MB 87.8 MB
Events in quadrant A3,064,492605,221
Events in quadrant B3,235,863623,352
Events in quadrant C3,546,855581,233
Events in quadrant D5,578,988536,929

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130792
B0135542
C0144512
D0208692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6307120.190265%
B6307540.856192%
C63071882.980815%
D63076179.782781%

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 7527 6308 1 1 0.01% 0.02%
B 7527 6308 23 23 0.31% 0.36%
C 7527 6308 92 92 1.22% 1.46%
D 7527 6308 514 514 6.83% 8.15%

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 13 254 8764 49.87 793 775 160.2
A 0 226 6804 37.64 793 775 160.2
A 3 137 6662 36.75 793 775 160.2
B 4 216 93131 614.43 794 775 150.3
B 0 189 22727 146.04 794 775 150.3
B 12 111 18049 114.92 794 775 150.3
C 10 9 430550 2424.24 761 768 177.3
C 14 238 121664 681.93 761 768 177.3
C 0 10 17154 92.43 761 768 177.3
D 1 52 2495840 13721.12 747 729 181.8
D 13 153 106372 580.95 747 729 181.8
D 2 152 66717 362.88 747 729 181.8

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