ASTROSAT CZTI

Data Quality Report

Orbit 47425

Creation date: 2024-07-05T16:13:19.568437
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/AS1A13_053T01_9000006326_47425cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47425cztM0_level2_quad_clean.evt
Size (bytes)227,937,60053,890,560
Size217.4 MB 51.4 MB
Events in quadrant A3,045,579353,821
Events in quadrant B1,872,781365,674
Events in quadrant C1,560,812351,875
Events in quadrant D1,693,141319,985

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110020
B080040
C072450
D076890

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A33901063.126844%
B33901103.244838%
C3390280.825959%
D3390581.710914%

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 3390 3390 4 4 0.12% 0.12%
B 3390 3390 47 47 1.39% 1.39%
C 3390 3390 13 13 0.38% 0.38%
D 3390 3390 37 37 1.09% 1.09%

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 1551493 19557.26 370 360 79.3
A 9 191 61198 767.07 370 360 79.3
A 0 243 4500 52.2 370 360 79.3
B 5 32 268314 3648.13 369 357 73.5
B 5 255 122884 1668.16 369 357 73.5
B 12 111 9676 126.87 369 357 73.5
C 1 3 43613 480.13 376 375 90.1
C 12 2 39287 432.09 376 375 90.1
C 6 255 6131 63.92 376 375 90.1
D 2 249 221211 2362.55 372 359 93.5
D 2 234 16842 176.33 372 359 93.5
D 11 224 16827 176.17 372 359 93.5

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