ASTROSAT CZTI

Data Quality Report

Orbit 54013

Creation date: 2025-09-23T11:23:55.903103
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_041T01_9000006510_54013cztM0_level2.fits modeM0/AS1A14_041T01_9000006510_54013cztM0_level2_quad_clean.evt
Size (bytes)831,801,600101,194,560
Size793.3 MB 96.5 MB
Events in quadrant A3,770,970739,120
Events in quadrant B7,106,563754,688
Events in quadrant C7,757,716595,426
Events in quadrant D11,536,708419,124

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172910
B0267330
C0288120
D0398690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7985620.776456%
B798581310.181590%
C7986145418.206862%
D7986312039.068370%

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 7985 7985 38 38 0.48% 0.48%
B 7985 7985 679 679 8.50% 8.50%
C 7986 7986 914 914 11.45% 11.45%
D 7986 7986 2373 2373 29.71% 29.71%

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 15 174 242756 1177.26 828 808 205.5
A 0 8 74388 358.02 828 808 205.5
A 8 249 59504 285.6 828 808 205.5
B 2 2 2610058 14986.75 815 787 174.1
B 5 185 333644 1911.81 815 787 174.1
B 7 0 295984 1695.51 815 787 174.1
C 4 5 3802110 18507.56 755 748 205.4
C 15 189 676243 3288.76 755 748 205.4
C 13 3 95805 462.8 755 748 205.4
D 8 176 7175946 41744.56 603 574 171.9
D 2 165 996449 5793.76 603 574 171.9
D 15 217 247377 1435.84 603 574 171.9

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