ASTROSAT CZTI

Data Quality Report

Orbit 08003

Creation date: 2024-06-27T15:26:41.297367
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/AS1G06_138T03_9000001096_08003cztM0_level2.evt modeM0/AS1G06_138T03_9000001096_08003cztM0_level2_quad_clean.evt
Size (bytes)163,575,36031,933,440
Size156.0 MB 30.5 MB
Events in quadrant A1,034,578205,485
Events in quadrant B1,078,171214,817
Events in quadrant C1,063,173212,887
Events in quadrant D1,643,895192,279

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042611
B044031
C043571
D062111

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1932261.345756%
B1932341.759834%
C1932231.190476%
D19321658.540373%

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 3202 1933 0 0 0.00% 0.00%
B 3202 1933 0 0 0.00% 0.00%
C 3202 1933 0 0 0.00% 0.00%
D 3202 1933 107 107 3.34% 5.54%

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 15 234 4677 79.48 267 261 55.6
A 0 226 2437 39.17 267 261 55.6
A 12 194 2293 36.57 267 261 55.6
B 5 255 9637 177.38 271 265 52.8
B 11 51 7859 143.73 271 265 52.8
B 4 173 7704 140.8 271 265 52.8
C 1 16 5997 90.03 269 271 63.6
C 12 4 4828 71.65 269 271 63.6
C 13 61 2066 28.22 269 271 63.6
D 11 144 341517 5415.74 260 253 63.0
D 1 52 232751 3689.66 260 253 63.0
D 2 14 24098 378.41 260 253 63.0

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