ASTROSAT CZTI

Data Quality Report

Orbit 10372

Creation date: 2024-06-27T15:58:32.392312
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/AS1A03_119T02_9000001496_10372cztM0_level2.evt modeM0/AS1A03_119T02_9000001496_10372cztM0_level2_quad_clean.evt
Size (bytes)482,132,160127,051,200
Size459.8 MB 121.2 MB
Events in quadrant A3,304,794837,675
Events in quadrant B3,638,810850,134
Events in quadrant C3,211,079848,390
Events in quadrant D3,953,841807,002

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0151
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149079
B01574215
C0147138
D01668010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7251590.813681%
B72481171.614238%
C7251340.468901%
D7250971.337931%

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 8809 7255 1 1 0.01% 0.01%
B 8809 7254 27 27 0.31% 0.37%
C 8809 7256 1 1 0.01% 0.01%
D 8809 7255 58 58 0.66% 0.80%

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 13 251 37418 215.5 834 813 169.9
A 15 174 34107 196.01 834 813 169.9
A 3 1 9590 51.67 834 813 169.9
B 4 239 211689 1301.07 839 816 162.1
B 0 214 61213 372.64 839 816 162.1
B 0 219 35074 211.37 839 816 162.1
C 15 48 19340 97.84 816 820 189.3
C 14 234 6288 28.89 816 820 189.3
C 13 61 6054 27.65 816 820 189.3
D 1 52 263505 1356.5 805 783 193.7
D 2 33 179691 923.75 805 783 193.7
D 1 20 134861 692.28 805 783 193.7

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