ASTROSAT CZTI

Data Quality Report

Orbit 42300

Creation date: 2024-06-27T22:38:00.674314
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/AS1P01_999T99_9000005772_42300cztM0_level2.fits modeM0/AS1P01_999T99_9000005772_42300cztM0_level2_quad_clean.evt
Size (bytes)314,438,40091,710,720
Size299.9 MB 87.5 MB
Events in quadrant A2,879,730635,065
Events in quadrant B2,646,477642,534
Events in quadrant C2,432,453609,137
Events in quadrant D3,299,324546,919

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01166395
B011059100
C01026979
D013297224

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01011

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4902120.244798%
B4898641.306656%
C490380.163165%
D48731743.570696%

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 7047 4938 5 5 0.07% 0.10%
B 7047 4935 37 37 0.53% 0.75%
C 7046 4936 1 1 0.01% 0.02%
D 7046 4930 140 140 1.99% 2.84%

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 543067 4451.51 593 584 121.9
A 13 248 30893 248.71 593 584 121.9
A 13 6 7491 56.68 593 584 121.9
B 4 171 224299 2002.78 581 568 111.7
B 3 112 48612 430.08 581 568 111.7
B 0 245 47356 418.83 581 568 111.7
C 15 214 204503 1559.94 563 568 130.7
C 12 249 25884 193.65 563 568 130.7
C 3 233 5433 37.21 563 568 130.7
D 12 233 581956 4298.72 557 541 135.3
D 1 52 264731 1953.3 557 541 135.3
D 12 6 74267 545.1 557 541 135.3

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