ASTROSAT CZTI

Data Quality Report

Orbit 05574

Creation date: 2024-06-27T14:56:48.074617
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/AS1A02_081T01_9000000720_05574cztM0_level2.evt modeM0/AS1A02_081T01_9000000720_05574cztM0_level2_quad_clean.evt
Size (bytes)310,080,96048,159,360
Size295.7 MB 45.9 MB
Events in quadrant A2,065,555295,868
Events in quadrant B2,339,899294,061
Events in quadrant C2,038,117285,395
Events in quadrant D2,642,757268,666

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093252
B099251
C092801
D0108581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4458581.301032%
B4458651.458053%
C4458591.323463%
D44581814.060117%

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 5503 4459 2 2 0.04% 0.04%
B 5503 4459 5 5 0.09% 0.11%
C 5503 4459 0 0 0.00% 0.00%
D 5503 4459 76 76 1.38% 1.70%

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 7 16 35972 330.32 521 509 107.4
A 13 14 12020 107.22 521 509 107.4
A 0 50 9919 87.65 521 509 107.4
B 15 204 195885 1913.32 526 513 102.1
B 10 245 53588 519.77 526 513 102.1
B 4 48 28773 276.76 526 513 102.1
C 9 16 42690 354.48 509 510 119.0
C 13 61 4121 30.35 509 510 119.0
C 8 222 3230 22.86 509 510 119.0
D 2 152 240753 1945.87 503 489 123.5
D 2 63 184123 1487.23 503 489 123.5
D 11 241 104059 838.8 503 489 123.5

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