ASTROSAT CZTI

Data Quality Report

Orbit 54433

Creation date: 2025-10-20T17:55:10.588675
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/AS1A14_126T19_9000006518_54433cztM0_level2.fits modeM0/AS1A14_126T19_9000006518_54433cztM0_level2_quad_clean.evt
Size (bytes)669,712,32092,128,320
Size638.7 MB 87.9 MB
Events in quadrant A3,069,107677,515
Events in quadrant B3,357,989725,917
Events in quadrant C3,553,212644,107
Events in quadrant D14,242,592233,973

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148750
B0155010
C0156080
D0473270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A729490.123389%
B7295520.712817%
C7295270.370117%
D7295480965.921864%

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 7294 7294 0 0 0.00% 0.00%
B 7295 7295 16 16 0.22% 0.22%
C 7295 7295 22 22 0.30% 0.30%
D 7295 7292 3673 3673 50.35% 50.37%

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 4 3 27530 141.31 768 749 189.5
A 11 3 19457 98.72 768 749 189.5
A 13 254 18872 95.63 768 749 189.5
B 10 247 98528 606.95 755 727 161.1
B 0 213 89102 548.45 755 727 161.1
B 5 185 54695 334.92 755 727 161.1
C 11 244 309477 1528.0 738 730 202.1
C 14 254 193116 952.12 738 730 202.1
C 1 16 57365 280.29 738 730 202.1
D 8 176 8665849 64414.71 468 446 134.5
D 7 70 2980199 22150.15 468 446 134.5
D 3 12 460144 3417.19 468 446 134.5

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