ASTROSAT CZTI

Data Quality Report

Orbit 53533

Creation date: 2025-08-21T03:45:09.438601
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_004T05_9000006502_53533cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53533cztM0_level2_quad_clean.evt
Size (bytes)715,800,960112,769,280
Size682.6 MB 107.5 MB
Events in quadrant A5,230,016781,393
Events in quadrant B5,279,713803,348
Events in quadrant C8,786,103608,718
Events in quadrant D6,575,674659,528

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210502
B0214312
C0318233
D0251942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80721852.291873%
B80734105.078657%
C8072163920.304757%
D80727058.733895%

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 8087 8073 127 127 1.57% 1.57%
B 8088 8074 187 187 2.31% 2.32%
C 8087 8073 1341 1341 16.58% 16.61%
D 8087 8073 565 565 6.99% 7.00%

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 12 80 539037 2451.31 884 862 219.5
A 3 63 401735 1825.92 884 862 219.5
A 3 62 329878 1498.62 884 862 219.5
B 10 28 565477 3034.35 865 835 186.1
B 4 81 442189 2371.81 865 835 186.1
B 8 128 158145 845.38 865 835 186.1
C 15 224 4877578 22527.4 779 772 216.5
C 12 249 191813 882.47 779 772 216.5
C 1 241 137390 631.08 779 772 216.5
D 7 70 1204063 4991.72 838 800 241.1
D 7 96 621269 2574.01 838 800 241.1
D 3 12 337354 1396.19 838 800 241.1

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