ASTROSAT CZTI

Data Quality Report

Orbit 04594

Creation date: 2024-06-27T14:44:21.662544
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/AS1G05_191T01_9000000572_04594cztM0_level2.evt modeM0/AS1G05_191T01_9000000572_04594cztM0_level2_quad_clean.evt
Size (bytes)536,817,60081,288,000
Size511.9 MB 77.5 MB
Events in quadrant A3,676,580503,503
Events in quadrant B3,874,578501,041
Events in quadrant C3,416,690493,867
Events in quadrant D4,786,390447,142

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015821221
B016478214
C015439197
D019871493

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01522
B01522
C01522
D01522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74111522.051005%
B74132112.846351%
C7421961.293626%
D73935287.141891%

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 7800 7458 25 25 0.32% 0.34%
B 7800 7465 56 56 0.72% 0.75%
C 7800 7463 6 6 0.08% 0.08%
D 7799 7435 339 339 4.35% 4.56%

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 15 174 162109 894.21 877 859 180.3
A 8 15 60235 329.27 877 859 180.3
A 13 14 56925 310.91 877 859 180.3
B 10 16 165691 965.35 884 865 170.7
B 2 249 149708 871.74 884 865 170.7
B 14 167 65673 379.57 884 865 170.7
C 14 48 43424 212.74 851 858 200.1
C 9 54 25258 121.95 851 858 200.1
C 0 239 8521 38.3 851 858 200.1
D 13 235 1399952 7007.53 817 793 199.7
D 2 136 86198 427.74 817 793 199.7
D 10 15 83929 416.38 817 793 199.7

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