ASTROSAT CZTI

Data Quality Report

Orbit 56032

Creation date: 2026-02-05T09:23:38.016206
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_066T02_9000006546_56032cztM0_level2.fits modeM0/AS1A14_066T02_9000006546_56032cztM0_level2_quad_clean.evt
Size (bytes)682,280,640113,515,200
Size650.7 MB 108.3 MB
Events in quadrant A9,625,882626,643
Events in quadrant B4,348,725817,583
Events in quadrant C4,607,810728,870
Events in quadrant D6,027,073684,790

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0344401
B0190591
C0197681
D0238143

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8336183522.012956%
B83362322.783109%
C83371672.003119%
D83363474.162668%

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 8476 8339 1401 1401 16.53% 16.80%
B 8476 8339 61 61 0.72% 0.73%
C 8477 8340 138 138 1.63% 1.65%
D 8476 8339 306 306 3.61% 3.67%

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 32 5225529 25063.5 843 821 208.5
A 7 64 695449 3332.21 843 821 208.5
A 12 115 229881 1098.83 843 821 208.5
B 5 185 375093 1914.52 907 874 195.5
B 10 247 79975 404.68 907 874 195.5
B 4 171 62716 316.39 907 874 195.5
C 9 38 437186 1789.16 890 884 243.9
C 13 3 407738 1668.4 890 884 243.9
C 12 252 167968 685.17 890 884 243.9
D 11 129 1018842 4080.82 879 842 249.5
D 6 239 353362 1413.13 879 842 249.5
D 3 12 327310 1308.7 879 842 249.5

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