ASTROSAT CZTI

Data Quality Report

Orbit 14202

Creation date: 2024-06-27T16:51:48.940206
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/AS1C03_022T01_9000002098_14202cztM0_level2.evt modeM0/AS1C03_022T01_9000002098_14202cztM0_level2_quad_clean.evt
Size (bytes)530,928,00072,722,880
Size506.3 MB 69.4 MB
Events in quadrant A3,823,954439,067
Events in quadrant B4,440,284433,588
Events in quadrant C3,557,622419,372
Events in quadrant D3,782,113422,276

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155274
B0174823
C0147063
D0157793

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70011582.256820%
B70014165.942008%
C70011091.556920%
D70021201.713796%

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 7004 10 10 0.13% 0.14%
B 7687 7004 164 164 2.13% 2.34%
C 7687 7004 1 1 0.01% 0.01%
D 7688 7005 1 1 0.01% 0.01%

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 8 15 201866 1099.26 892 873 182.8
A 9 143 153409 834.24 892 873 182.8
A 12 189 21516 112.9 892 873 182.8
B 0 182 706051 4201.59 868 847 167.8
B 4 97 96649 570.79 868 847 167.8
B 0 229 49074 287.34 868 847 167.8
C 3 233 223789 1118.32 850 855 199.3
C 7 235 11268 52.24 850 855 199.3
C 13 61 6207 26.85 850 855 199.3
D 5 222 270674 1278.69 860 841 211.0
D 8 195 87494 410.63 860 841 211.0
D 10 199 73530 344.46 860 841 211.0

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