ASTROSAT CZTI

Data Quality Report

Orbit 02145

Creation date: 2024-06-27T14:14:34.626906
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/AS1T01_072T02_9000000336_02145cztM0_level2.evt modeM0/AS1T01_072T02_9000000336_02145cztM0_level2_quad_clean.evt
Size (bytes)408,528,00079,519,680
Size389.6 MB 75.8 MB
Events in quadrant A2,926,698479,204
Events in quadrant B3,111,201488,774
Events in quadrant C2,985,469471,693
Events in quadrant D2,855,857464,350

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146902
B0148922
C0146982
D0147692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A724050.069061%
B7240170.234807%
C724050.069061%
D724080.110497%

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 7925 7241 0 0 0.00% 0.00%
B 7925 7241 10 10 0.13% 0.14%
C 7925 7241 0 0 0.00% 0.00%
D 7925 7241 5 5 0.06% 0.07%

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 15 171 6943 41.4 757 742 149.8
A 15 191 6086 35.68 757 742 149.8
A 0 1 3700 19.75 757 742 149.8
B 5 68 60691 413.79 787 771 144.8
B 0 228 16601 109.32 787 771 144.8
B 5 189 11123 71.49 787 771 144.8
C 9 85 47113 280.09 747 750 165.5
C 10 82 4995 25.65 747 750 165.5
C 10 65 3778 18.29 747 750 165.5
D 9 64 25669 150.94 733 716 165.3
D 13 53 18427 107.13 733 716 165.3
D 15 47 14272 82.0 733 716 165.3

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