ASTROSAT CZTI

Data Quality Report

Orbit 05951

Creation date: 2024-06-27T15:01:09.650764
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/AS1G06_157T01_9000000772_05951cztM0_level2.evt modeM0/AS1G06_157T01_9000000772_05951cztM0_level2_quad_clean.evt
Size (bytes)416,249,28071,196,480
Size397.0 MB 67.9 MB
Events in quadrant A3,559,496428,771
Events in quadrant B2,669,840444,651
Events in quadrant C2,479,775436,152
Events in quadrant D3,512,230450,875

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162961792
B0133351522
C0131031601
D0166352047

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013016
B013014
C012919
D013016

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56471522.691695%
B5680671.179577%
C5636370.656494%
D56323215.699574%

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 7301 6037 70 70 0.96% 1.16%
B 7300 6019 9 9 0.12% 0.15%
C 7301 6004 0 0 0.00% 0.00%
D 7297 5989 266 266 3.65% 4.44%

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 13 251 612946 4678.84 632 617 130.9
A 4 2 503059 3839.18 632 617 130.9
A 8 192 10994 79.29 632 617 130.9
B 0 219 64699 515.47 650 634 124.3
B 15 255 49738 395.09 650 634 124.3
B 15 204 13990 107.46 650 634 124.3
C 1 16 26407 178.6 625 628 144.3
C 9 68 5014 30.39 625 628 144.3
C 13 61 5001 30.3 625 628 144.3
D 1 20 1030784 7054.86 602 582 146.0
D 2 63 196273 1340.1 602 582 146.0
D 2 152 8148 51.81 602 582 146.0

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