ASTROSAT CZTI

Data Quality Report

Orbit 08973

Creation date: 2024-06-27T15:39:37.650229
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/AS1G07_019T01_9000001244_08973cztM0_level2.evt modeM0/AS1G07_019T01_9000001244_08973cztM0_level2_quad_clean.evt
Size (bytes)472,919,04090,383,040
Size451.0 MB 86.2 MB
Events in quadrant A3,955,257578,469
Events in quadrant B3,610,710586,287
Events in quadrant C3,155,940571,502
Events in quadrant D3,171,562559,971

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158703
B0145372
C0133732
D0134212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63172654.195029%
B63172393.783442%
C6317951.503878%
D6317981.551369%

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 7557 6317 90 90 1.19% 1.42%
B 7557 6317 71 71 0.94% 1.12%
C 7557 6317 6 6 0.08% 0.09%
D 7557 6317 5 5 0.07% 0.08%

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 8 5 366859 2233.31 822 806 163.9
A 15 174 229750 1396.8 822 806 163.9
A 5 16 186614 1133.62 822 806 163.9
B 10 16 299793 1952.26 817 797 153.2
B 0 213 33536 213.77 817 797 153.2
B 0 214 32555 207.36 817 797 153.2
C 4 254 79254 436.26 788 793 179.8
C 13 61 6059 29.28 788 793 179.8
C 3 202 1943 6.39 788 793 179.8
D 7 71 50373 241.17 794 774 205.7
D 13 29 32848 155.95 794 774 205.7
D 2 234 23229 109.18 794 774 205.7

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