ASTROSAT CZTI

Data Quality Report

Orbit 53445

Creation date: 2025-10-15T20:25:17.774510
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_002T06_9000006496_53445cztM0_level2.fits modeM0/AS1A14_002T06_9000006496_53445cztM0_level2_quad_clean.evt
Size (bytes)797,503,680107,576,640
Size760.6 MB 102.6 MB
Events in quadrant A8,658,919651,615
Events in quadrant B5,739,637789,278
Events in quadrant C9,337,772605,593
Events in quadrant D5,176,031663,669

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310931
B0227101
C0332031
D0209841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7863151919.318326%
B78646838.685148%
C7864161820.574771%
D78643324.221770%

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 7863 7863 1299 1299 16.52% 16.52%
B 7864 7864 203 203 2.58% 2.58%
C 7864 7864 1240 1240 15.77% 15.77%
D 7864 7864 220 220 2.80% 2.80%

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 3 63 3213853 15820.16 819 798 203.1
A 15 174 1681976 8277.64 819 798 203.1
A 3 78 196162 961.92 819 798 203.1
B 4 171 1127347 6125.81 860 827 183.9
B 10 254 374853 2033.88 860 827 183.9
B 8 234 207586 1124.32 860 827 183.9
C 15 224 2792818 12811.57 797 791 217.9
C 15 178 1696950 7783.04 797 791 217.9
C 4 5 715446 3279.28 797 791 217.9
D 2 249 632630 2676.5 842 806 236.1
D 2 172 278644 1176.96 842 806 236.1
D 13 153 179803 758.26 842 806 236.1

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