ASTROSAT CZTI

Data Quality Report

Orbit 54114

Creation date: 2025-09-29T06:40:02.665473
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_54114cztM0_level2.fits modeM0/AS1A14_012T01_9000006512_54114cztM0_level2_quad_clean.evt
Size (bytes)623,825,280104,567,040
Size594.9 MB 99.7 MB
Events in quadrant A4,211,619686,999
Events in quadrant B5,300,485701,046
Events in quadrant C6,468,868602,243
Events in quadrant D6,462,570594,429

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189102
B0221312
C0256482
D0251362

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83541842.202538%
B83546087.277951%
C8355102712.292041%
D83554505.385996%

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 8806 8633 88 88 1.00% 1.02%
B 8806 8633 272 272 3.09% 3.15%
C 8807 8634 788 788 8.95% 9.13%
D 8807 8631 314 314 3.57% 3.64%

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 282929 1303.5 881 859 216.4
A 0 8 218866 1007.45 881 859 216.4
A 13 248 91413 418.47 881 859 216.4
B 5 185 511961 2774.72 864 832 184.2
B 0 213 318555 1724.79 864 832 184.2
B 15 20 269367 1457.77 864 832 184.2
C 1 241 1277439 5605.73 825 816 227.7
C 15 147 1121547 4921.2 825 816 227.7
C 13 3 626299 2746.53 825 816 227.7
D 2 165 1195268 4903.37 851 810 243.6
D 2 172 505866 2073.31 851 810 243.6
D 8 176 329556 1349.54 851 810 243.6

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