ASTROSAT CZTI

Data Quality Report

Orbit 00192

Creation date: 2024-06-27T13:57:35.158261
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/AS1P01_120T01_9000000016_00192cztM0_level2.evt modeM0/AS1P01_120T01_9000000016_00192cztM0_level2_quad_clean.evt
Size (bytes)887,057,28075,502,080
Size846.0 MB 72.0 MB
Events in quadrant A6,679,163466,575
Events in quadrant B6,908,847478,989
Events in quadrant C6,217,484475,550
Events in quadrant D6,670,864457,218

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236118
B0236118
C0236118
D0236118

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04800524009
B04936424688
C04528022647
D04798624003

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04221
B04221
C04221
D04422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A583920.034252%
B5839440.753554%
C5839130.222641%
D5838130.222679%

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 7460 5842 112 112 1.50% 1.92%
B 7460 5842 175 175 2.35% 3.00%
C 7460 5842 66 66 0.88% 1.13%
D 7460 5842 209 209 2.80% 3.58%

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 12 244 13113 30.18 1715 1701 378.1
A 12 189 12086 27.47 1715 1701 378.1
A 15 127 11306 25.4 1715 1701 378.1
B 0 247 262189 642.78 1723 1732 405.2
B 0 217 16329 36.02 1723 1732 405.2
B 15 219 14347 31.13 1723 1732 405.2
C 1 192 36857 81.54 1556 1614 432.2
C 0 188 21596 46.23 1556 1614 432.2
C 10 33 17394 36.51 1556 1614 432.2
D 2 89 500853 1071.34 1530 1582 466.0
D 13 88 89583 188.83 1530 1582 466.0
D 1 4 84180 177.24 1530 1582 466.0

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