ASTROSAT CZTI

Data Quality Report

Orbit 53095

Creation date: 2025-07-23T13:47:32.428542
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/AS1C09_011T07_9000006488_53095cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53095cztM0_level2_quad_clean.evt
Size (bytes)961,813,44069,730,560
Size917.3 MB 66.5 MB
Events in quadrant A14,397,535161,649
Events in quadrant B4,460,205641,212
Events in quadrant C11,533,468331,865
Events in quadrant D4,707,698520,572

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01351
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047637374
B01792764
C039020298
D018831116

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6507508378.115875%
B65392573.930265%
C6515311947.874137%
D65304997.641654%

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 7315 6535 4526 4526 61.87% 69.26%
B 7314 6558 114 114 1.56% 1.74%
C 7315 6538 2801 2801 38.29% 42.84%
D 7315 6553 401 401 5.48% 6.12%

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 9 191 11408748 106591.63 426 414 107.0
A 7 206 560135 5229.64 426 414 107.0
A 6 248 284921 2658.23 426 414 107.0
B 14 167 787186 5672.84 656 636 138.7
B 2 249 402482 2898.23 656 636 138.7
B 10 247 176593 1269.05 656 636 138.7
C 9 38 3590518 26428.01 492 486 135.8
C 1 241 2378216 17503.65 492 486 135.8
C 15 224 2108113 15515.29 492 486 135.8
D 12 17 1323119 7274.81 630 600 181.8
D 10 172 222579 1221.04 630 600 181.8
D 8 176 196092 1075.35 630 600 181.8

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