ASTROSAT CZTI

Data Quality Report

Orbit 43083

Creation date: 2024-06-27T22:47:47.235983
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_001T10_9000005844_43083cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43083cztM0_level2_quad_clean.evt
Size (bytes)149,722,56036,921,600
Size142.8 MB 35.2 MB
Events in quadrant A1,377,416264,775
Events in quadrant B1,029,529266,577
Events in quadrant C1,413,293224,641
Events in quadrant D1,561,733215,197

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1140715398490152140711718551598
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054441
B043111
C053981
D059501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2027251.233350%
B2027100.493340%
C20271808.880118%
D20271859.126788%

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 2027 2027 14 14 0.69% 0.69%
B 2027 2027 7 7 0.35% 0.35%
C 2027 2027 159 159 7.84% 7.84%
D 2027 2027 164 164 8.09% 8.09%

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 259294 5225.48 239 235 49.6
A 15 237 99333 1998.91 239 235 49.6
A 12 189 88971 1789.89 239 235 49.6
B 5 255 47416 1049.12 232 226 45.0
B 0 229 31607 697.66 232 226 45.0
B 0 155 14115 308.78 232 226 45.0
C 2 16 469048 9226.19 216 217 50.8
C 15 214 90417 1775.06 216 217 50.8
C 1 128 2931 53.41 216 217 50.8
D 12 233 386488 7142.23 221 215 54.1
D 10 118 127704 2357.28 221 215 54.1
D 1 52 88959 1640.89 221 215 54.1

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