ASTROSAT CZTI

Data Quality Report

Orbit 45069

Creation date: 2024-06-27T23:09:35.569725
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/AS1A13_020T01_9000006040_45069cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45069cztM0_level2_quad_clean.evt
Size (bytes)454,944,960109,644,480
Size433.9 MB 104.6 MB
Events in quadrant A5,212,266736,679
Events in quadrant B3,228,600764,077
Events in quadrant C3,130,997727,736
Events in quadrant D4,780,624653,024

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197601
B0135611
C0134201
D0183151

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62831983.151361%
B62841542.450668%
C62841522.418842%
D62843615.744749%

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 7418 6284 4 4 0.05% 0.06%
B 7419 6285 11 11 0.15% 0.18%
C 7419 6285 51 51 0.69% 0.81%
D 7419 6285 235 235 3.17% 3.74%

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 2222832 14187.55 757 742 156.6
A 10 248 22286 137.55 757 742 156.6
A 7 3 21967 135.52 757 742 156.6
B 5 255 87852 595.13 756 733 146.4
B 10 3 69000 466.34 756 733 146.4
B 0 183 60196 406.2 756 733 146.4
C 1 241 144722 823.01 749 754 174.9
C 0 207 27947 155.45 749 754 174.9
C 3 233 16641 90.82 749 754 174.9
D 13 187 439086 2369.63 744 724 185.0
D 11 241 369430 1993.1 744 724 185.0
D 13 249 199967 1077.04 744 724 185.0

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