ASTROSAT CZTI

Data Quality Report

Orbit 45893

Creation date: 2024-06-27T23:17:24.908452
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/AS1A13_033T02_9000006140_45893cztM0_level2.fits modeM0/AS1A13_033T02_9000006140_45893cztM0_level2_quad_clean.evt
Size (bytes)226,998,72043,525,440
Size216.5 MB 41.5 MB
Events in quadrant A2,420,903292,938
Events in quadrant B2,321,998285,619
Events in quadrant C1,205,141301,430
Events in quadrant D2,256,612256,605

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089591
B086211
C052891
D084701

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25291335.258996%
B252934113.483590%
C2529190.751285%
D25292158.501384%

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 3649 2530 14 14 0.38% 0.55%
B 3649 2529 167 167 4.58% 6.60%
C 3649 2530 0 0 0.00% 0.00%
D 3649 2529 136 136 3.73% 5.38%

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 10 83 1234897 19027.6 305 298 64.9
A 3 137 3362 47.22 305 298 64.9
A 13 254 3357 47.15 305 298 64.9
B 3 112 905645 15355.26 296 288 59.0
B 5 172 164358 2782.7 296 288 59.0
B 4 171 39929 672.33 296 288 59.0
C 3 233 2519 30.06 307 308 73.5
C 14 254 2215 25.93 307 308 73.5
C 13 61 2124 24.69 307 308 73.5
D 12 2 677268 8984.14 293 283 75.4
D 13 249 187530 2484.92 293 283 75.4
D 1 52 105444 1395.57 293 283 75.4

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