ASTROSAT CZTI

Data Quality Report

Orbit 25494

Creation date: 2024-06-27T19:18:17.856172
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/AS1C05_012T07_9000003718_25494cztM0_level2.evt modeM0/AS1C05_012T07_9000003718_25494cztM0_level2_quad_clean.evt
Size (bytes)109,203,84026,965,440
Size104.1 MB 25.7 MB
Events in quadrant A663,367184,553
Events in quadrant B1,004,031181,785
Events in quadrant C644,901173,129
Events in quadrant D893,974169,451

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028840
B038920
C028790
D035980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A143840.278164%
B1439674.656011%
C143940.277971%
D143960.416956%

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 1438 1438 0 0 0.00% 0.00%
B 1439 1439 44 44 3.06% 3.06%
C 1439 1439 0 0 0.00% 0.00%
D 1439 1439 3 3 0.21% 0.21%

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 11 208 5039 135.2 170 166 36.0
A 13 254 2221 57.01 170 166 36.0
A 0 226 1549 38.37 170 166 36.0
B 3 64 327210 9944.1 163 159 32.9
B 0 190 17169 517.19 163 159 32.9
B 0 229 10083 301.74 163 159 32.9
C 14 238 25004 649.29 158 158 38.3
C 3 233 1571 36.93 158 158 38.3
C 13 61 1121 25.17 158 158 38.3
D 7 238 116547 2789.0 164 158 41.7
D 1 52 91699 2193.58 164 158 41.7
D 8 195 46284 1105.31 164 158 41.7

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