ASTROSAT CZTI

Data Quality Report

Orbit 09203

Creation date: 2024-06-27T15:42:39.046045
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/AS1C02_042T02_9000001284_09203cztM0_level2.evt modeM0/AS1C02_042T02_9000001284_09203cztM0_level2_quad_clean.evt
Size (bytes)478,523,52091,051,200
Size456.4 MB 86.8 MB
Events in quadrant A3,993,082578,507
Events in quadrant B3,419,813595,258
Events in quadrant C3,086,932577,122
Events in quadrant D3,550,939553,102

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159687
B0142978
C0134442
D0149772

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6500941.446154%
B6500620.953846%
C6501310.476850%
D65011021.568989%

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 8820 6500 21 21 0.24% 0.32%
B 8820 6500 6 6 0.07% 0.09%
C 8820 6500 0 0 0.00% 0.00%
D 8820 6500 99 99 1.12% 1.52%

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 8 5 705756 4311.25 799 784 163.5
A 1 162 123575 750.93 799 784 163.5
A 1 178 25173 149.15 799 784 163.5
B 4 48 156724 998.98 809 789 156.1
B 0 187 24643 152.82 809 789 156.1
B 0 245 23220 143.7 809 789 156.1
C 3 233 63226 346.67 774 779 180.1
C 13 61 5901 28.43 774 779 180.1
C 8 222 2817 11.31 774 779 180.1
D 4 95 326015 1624.18 764 745 200.3
D 1 52 136823 679.48 764 745 200.3
D 7 71 80398 397.73 764 745 200.3

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