ASTROSAT CZTI

Data Quality Report

Orbit 16090

Creation date: 2024-06-27T17:17:50.471786
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/AS1T02_110T01_9000002376_16090cztM0_level2.evt modeM0/AS1T02_110T01_9000002376_16090cztM0_level2_quad_clean.evt
Size (bytes)509,996,16079,816,320
Size486.4 MB 76.1 MB
Events in quadrant A3,451,679506,207
Events in quadrant B3,439,780506,769
Events in quadrant C3,590,572482,917
Events in quadrant D4,505,000450,339

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146053
B0143402
C0147672
D0179632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67461241.838126%
B6746721.067299%
C6746771.141417%
D67464927.293211%

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 7687 6747 67 67 0.87% 0.99%
B 7687 6747 6 6 0.08% 0.09%
C 7687 6747 0 0 0.00% 0.00%
D 7687 6747 456 456 5.93% 6.76%

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 15 239 215347 1293.14 818 802 165.9
A 9 143 56767 337.32 818 802 165.9
A 12 96 19728 114.07 818 802 165.9
B 0 189 85017 534.92 820 797 157.4
B 7 220 29355 181.38 820 797 157.4
B 4 173 24943 153.36 820 797 157.4
C 3 233 408130 2234.05 781 784 182.3
C 14 238 120728 657.82 781 784 182.3
C 0 207 10592 53.79 781 784 182.3
D 7 38 1293080 6866.82 768 743 188.2
D 1 52 123832 654.03 768 743 188.2
D 12 218 122739 648.22 768 743 188.2

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