ASTROSAT CZTI

Data Quality Report

Orbit 05486

Creation date: 2024-06-27T14:55:53.694448
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_139T01_9000000700_05486cztM0_level2.evt modeM0/AS1G06_139T01_9000000700_05486cztM0_level2_quad_clean.evt
Size (bytes)517,924,80079,943,040
Size493.9 MB 76.2 MB
Events in quadrant A3,010,202508,322
Events in quadrant B3,461,265509,716
Events in quadrant C4,141,356477,219
Events in quadrant D4,643,353483,774

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131772
B0144661
C0165951
D0180651

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6327851.343449%
B6327901.422475%
C63275218.234550%
D63272413.809072%

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 7577 6328 0 0 0.00% 0.00%
B 7577 6328 6 6 0.08% 0.09%
C 7577 6328 366 366 4.83% 5.78%
D 7577 6328 207 207 2.73% 3.27%

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 14 218 8652 50.03 775 760 157.7
A 0 226 8023 46.04 775 760 157.7
A 12 194 7769 44.43 775 760 157.7
B 15 204 267671 1791.24 779 761 149.0
B 11 51 91596 609.6 779 761 149.0
B 4 81 29761 194.62 779 761 149.0
C 9 247 1338233 8059.39 714 718 166.0
C 1 16 12818 72.91 714 718 166.0
C 13 61 5742 30.27 714 718 166.0
D 9 85 811614 4365.9 745 722 185.7
D 2 152 780336 4197.49 745 722 185.7
D 8 195 62094 330.43 745 722 185.7

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