ASTROSAT CZTI

Data Quality Report

Orbit 42197

Creation date: 2024-06-27T22:38:22.913491
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/AS1A12_088T58_9000005772_42197cztM0_level2.fits modeM0/AS1A12_088T58_9000005772_42197cztM0_level2_quad_clean.evt
Size (bytes)134,458,56032,423,040
Size128.2 MB 30.9 MB
Events in quadrant A1,119,560221,835
Events in quadrant B993,187224,526
Events in quadrant C868,156215,002
Events in quadrant D1,853,444188,626

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044921
B041261
C036841
D067831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1805160.886427%
B1805160.886427%
C180510.055402%
D18051407.756233%

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 1805 1805 2 2 0.11% 0.11%
B 1805 1805 9 9 0.50% 0.50%
C 1805 1805 0 0 0.00% 0.00%
D 1805 1805 140 140 7.76% 7.76%

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 10 83 238620 5208.75 213 209 45.8
A 15 223 53922 1173.51 213 209 45.8
A 3 137 2232 44.2 213 209 45.8
B 0 229 84782 2001.25 208 202 42.3
B 15 35 37424 880.71 208 202 42.3
B 0 156 24610 577.52 208 202 42.3
C 15 214 78642 1618.22 201 203 48.5
C 7 220 2271 42.66 201 203 48.5
C 13 61 1390 24.49 201 203 48.5
D 1 52 703250 14029.81 199 194 50.1
D 12 233 134086 2671.88 199 194 50.1
D 5 70 100824 2008.12 199 194 50.1

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