ASTROSAT CZTI

Data Quality Report

Orbit 15473

Creation date: 2024-06-27T17:09:00.042409
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/AS1A04_203T01_9000002284_15473cztM0_level2.evt modeM0/AS1A04_203T01_9000002284_15473cztM0_level2_quad_clean.evt
Size (bytes)529,848,00065,044,800
Size505.3 MB 62.0 MB
Events in quadrant A3,476,595393,602
Events in quadrant B3,707,533393,435
Events in quadrant C3,468,380376,412
Events in quadrant D4,962,162361,454

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141553
B0150662
C0139682
D0188132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63631101.728744%
B63631572.467390%
C63631221.917335%
D63635298.313689%

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 7694 6364 0 0 0.00% 0.00%
B 7694 6364 28 28 0.36% 0.44%
C 7694 6364 0 0 0.00% 0.00%
D 7694 6364 365 365 4.74% 5.74%

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 9 143 14171 74.1 901 885 179.3
A 0 226 8026 39.82 901 885 179.3
A 12 194 6823 33.12 901 885 179.3
B 15 222 96898 575.37 889 871 166.9
B 3 209 38566 225.86 889 871 166.9
B 0 230 27526 159.71 889 871 166.9
C 14 238 133390 673.56 850 858 196.8
C 3 233 16405 79.01 850 858 196.8
C 13 61 6285 27.58 850 858 196.8
D 1 52 1508950 7316.75 848 823 206.1
D 5 222 182055 879.26 848 823 206.1
D 12 221 27192 127.93 848 823 206.1

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