ASTROSAT CZTI

Data Quality Report

Orbit 32962

Creation date: 2024-06-27T20:43:55.658156
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/AS1C07_001T01_9000004752_32962cztM0_level2.evt modeM0/AS1C07_001T01_9000004752_32962cztM0_level2_quad_clean.evt
Size (bytes)521,418,24099,561,600
Size497.3 MB 94.9 MB
Events in quadrant A2,322,612682,576
Events in quadrant B3,391,795675,384
Events in quadrant C2,541,131696,295
Events in quadrant D7,183,701596,643

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104753
B0135652
C0110422
D0250242

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A519690.173210%
B51962905.581216%
C5196420.808314%
D519685516.454965%

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 7258 5197 2 2 0.03% 0.04%
B 7258 5196 187 187 2.58% 3.60%
C 7258 5197 31 31 0.43% 0.60%
D 7258 5197 856 856 11.79% 16.47%

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 6 10766 85.64 594 582 118.9
A 13 254 8782 68.96 594 582 118.9
A 0 254 8021 62.56 594 582 118.9
B 5 172 666980 6059.99 584 569 110.0
B 5 200 173066 1568.6 584 569 110.0
B 0 199 66635 600.77 584 569 110.0
C 0 10 164801 1226.18 582 587 133.9
C 14 67 46003 339.12 582 587 133.9
C 1 241 29381 215.0 582 587 133.9
D 12 227 1460478 10304.97 541 530 141.7
D 8 195 1451496 10241.57 541 530 141.7
D 7 223 512957 3616.94 541 530 141.7

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