ASTROSAT CZTI

Data Quality Report

Orbit 54143

Creation date: 2025-10-01T05:33:34.343213
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_012T01_9000006512_54143cztM0_level2.fits modeM0/AS1A14_012T01_9000006512_54143cztM0_level2_quad_clean.evt
Size (bytes)681,367,680109,831,680
Size649.8 MB 104.7 MB
Events in quadrant A4,664,191740,974
Events in quadrant B5,307,393775,382
Events in quadrant C4,416,370698,202
Events in quadrant D10,217,865558,173

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195810
B0214215
C0189470
D0359280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79512543.194567%
B79514725.936360%
C79513023.798264%
D7951168021.129418%

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 7950 7950 197 197 2.48% 2.48%
B 7950 7950 319 319 4.01% 4.01%
C 7950 7950 137 137 1.72% 1.72%
D 7950 7950 1573 1573 19.79% 19.79%

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 7 14 521633 2478.4 841 821 210.1
A 15 174 300367 1425.45 841 821 210.1
A 0 8 223132 1057.91 841 821 210.1
B 5 185 721447 4137.44 826 797 174.2
B 15 20 270611 1549.07 826 797 174.2
B 5 236 218351 1249.03 826 797 174.2
C 9 38 731174 3246.76 819 812 225.0
C 15 217 164636 728.26 819 812 225.0
C 11 244 73776 324.35 819 812 225.0
D 2 172 3354438 15595.88 755 720 215.0
D 7 70 2675281 12437.58 755 720 215.0
D 8 176 492145 2285.29 755 720 215.0

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