ASTROSAT CZTI

Data Quality Report

Orbit 16328

Creation date: 2024-06-27T17:21:05.891119
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/AS1A05_096T04_9000002406_16328cztM0_level2.evt modeM0/AS1A05_096T04_9000002406_16328cztM0_level2_quad_clean.evt
Size (bytes)421,427,520103,150,080
Size401.9 MB 98.4 MB
Events in quadrant A2,941,626677,613
Events in quadrant B3,338,801693,867
Events in quadrant C3,064,276679,985
Events in quadrant D3,019,876663,087

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122782
B0134661
C0123891
D0125641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5857510.870753%
B5857621.058562%
C58571111.895168%
D5857591.007342%

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 7143 5859 7 7 0.10% 0.12%
B 7143 5859 14 14 0.20% 0.24%
C 7143 5859 0 0 0.00% 0.00%
D 7143 5859 18 18 0.25% 0.31%

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 82807 557.14 743 728 147.3
A 0 226 6565 39.62 743 728 147.3
A 12 194 5585 32.97 743 728 147.3
B 3 112 288815 2072.47 742 723 139.0
B 0 189 37473 264.37 742 723 139.0
B 0 198 25240 176.37 742 723 139.0
C 14 238 114440 675.42 733 737 168.3
C 3 233 72879 428.54 733 737 168.3
C 0 207 19846 113.51 733 737 168.3
D 1 52 61514 342.0 741 719 177.8
D 2 14 42705 236.19 741 719 177.8
D 2 136 35526 195.81 741 719 177.8

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