ASTROSAT CZTI

Data Quality Report

Orbit 01382

Creation date: 2024-06-27T14:11:51.092699
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/AS1G04_014T02_9000000232_01382cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01382cztM0_level2_quad_clean.evt
Size (bytes)1,259,288,64095,238,720
Size1.2 GB 90.8 MB
Events in quadrant A11,616,643569,068
Events in quadrant B9,635,648637,526
Events in quadrant C7,876,584621,951
Events in quadrant D8,568,593590,017

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0393692
B0333501
C0281291
D0303081

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6669114917.228970%
B6669881.319538%
C6669210.314890%
D66694046.057880%

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 7204 6669 1864 1864 25.87% 27.95%
B 7204 6670 678 678 9.41% 10.16%
C 7204 6669 153 153 2.12% 2.29%
D 7203 6668 645 645 8.95% 9.67%

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 15 127 4187252 9028.37 1911 1923 463.6
A 4 32 52419 108.93 1911 1923 463.6
A 12 243 24166 47.98 1911 1923 463.6
B 8 4 714305 1392.91 2126 2133 511.3
B 12 52 309249 600.68 2126 2133 511.3
B 5 249 168312 325.02 2126 2133 511.3
C 15 241 256194 469.83 1930 1999 541.0
C 3 79 37847 66.26 1930 1999 541.0
C 3 111 30085 51.91 1930 1999 541.0
D 13 73 976071 1704.5 1842 1911 571.5
D 2 16 358260 623.51 1842 1911 571.5
D 13 252 144147 248.87 1842 1911 571.5

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