ASTROSAT CZTI

Data Quality Report

Orbit 00803

Creation date: 2024-06-27T14:03:09.434955
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_010T01_9000000112_00803cztM0_level2.evt modeM0/AS1P01_010T01_9000000112_00803cztM0_level2_quad_clean.evt
Size (bytes)543,251,52045,141,120
Size518.1 MB 43.0 MB
Events in quadrant A3,710,716290,523
Events in quadrant B5,459,062275,622
Events in quadrant C3,444,086294,086
Events in quadrant D3,625,196279,354

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132740
B0185170
C0125330
D0130760

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A319160.188029%
B31912848.900031%
C319150.156691%
D31921605.012531%

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 3191 3191 47 47 1.47% 1.47%
B 3191 3191 1107 1107 34.69% 34.69%
C 3191 3191 26 26 0.81% 0.81%
D 3192 3192 171 171 5.36% 5.36%

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 14 79 33391 142.4 941 950 227.8
A 15 233 32292 137.58 941 950 227.8
A 8 192 22957 96.6 941 950 227.8
B 15 223 1330457 5912.4 930 935 224.9
B 5 191 450961 2001.27 930 935 224.9
B 15 22 52622 229.85 930 935 224.9
C 9 52 52995 219.63 844 871 237.3
C 15 241 27214 111.0 844 871 237.3
C 3 79 23489 95.3 844 871 237.3
D 11 131 342785 1306.43 825 851 261.7
D 13 25 73991 279.45 825 851 261.7
D 1 4 40786 152.58 825 851 261.7

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