ASTROSAT CZTI

Data Quality Report

Orbit 19387

Creation date: 2024-06-27T18:02:25.018839
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_227T03_9000002872_19387cztM0_level2.evt modeM0/AS1A05_227T03_9000002872_19387cztM0_level2_quad_clean.evt
Size (bytes)233,038,08029,813,760
Size222.2 MB 28.4 MB
Events in quadrant A795,155226,879
Events in quadrant B871,284229,048
Events in quadrant C777,362215,403
Events in quadrant D4,488,87398,467

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036690
B038310
C036490
D0145410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179960.333519%
B1800160.888889%
C180080.444444%
D1800171395.166667%

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 1799 1799 0 0 0.00% 0.00%
B 1800 1800 3 3 0.17% 0.17%
C 1800 1800 0 0 0.00% 0.00%
D 1800 1800 1691 1691 93.94% 93.94%

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 5 16 5156 112.22 204 200 44.2
A 13 254 2648 55.43 204 200 44.2
A 0 226 1758 35.28 204 200 44.2
B 7 220 22313 533.73 206 201 41.4
B 15 32 10117 239.35 206 201 41.4
B 0 197 7796 183.33 206 201 41.4
C 14 238 29785 637.21 191 192 46.4
C 13 61 1405 26.12 191 192 46.4
C 3 233 1165 20.95 191 192 46.4
D 10 66 2727738 100934.41 102 98 27.0
D 7 238 1293187 47849.85 102 98 27.0
D 12 218 33826 1248.08 102 98 27.0

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