ASTROSAT CZTI

Data Quality Report

Orbit 28095

Creation date: 2024-06-27T19:47:59.950102
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/AS1A10_057T05_9000004060_28095cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28095cztM0_level2_quad_clean.evt
Size (bytes)630,262,080100,442,880
Size601.1 MB 95.8 MB
Events in quadrant A3,433,210697,768
Events in quadrant B3,340,936692,335
Events in quadrant C3,363,996653,716
Events in quadrant D8,522,676558,188

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138370
B0134560
C0135770
D0295900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6298380.603366%
B6298510.809781%
C6298791.254366%
D6297227236.080673%

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 7608 6299 0 0 0.00% 0.00%
B 7608 6299 0 0 0.00% 0.00%
C 7608 6299 0 0 0.00% 0.00%
D 7607 6297 2010 2010 26.42% 31.92%

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 0 13 60925 352.07 868 854 170.6
A 15 174 23081 130.27 868 854 170.6
A 13 254 10152 54.49 868 854 170.6
B 12 111 18559 112.71 845 825 157.3
B 11 111 16824 101.68 845 825 157.3
B 14 111 15882 95.7 845 825 157.3
C 14 238 134088 707.02 814 821 188.5
C 3 233 37864 196.52 814 821 188.5
C 15 208 20019 101.85 814 821 188.5
D 12 1 5132251 34057.8 644 630 150.7
D 1 52 414802 2748.8 644 630 150.7
D 8 195 266487 1764.45 644 630 150.7

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