ASTROSAT CZTI

Data Quality Report

Orbit 16113

Creation date: 2024-06-27T17:18:10.308696
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/AS1A04_209T01_9000002378_16113cztM0_level2.evt modeM0/AS1A04_209T01_9000002378_16113cztM0_level2_quad_clean.evt
Size (bytes)609,019,20094,098,240
Size580.8 MB 89.7 MB
Events in quadrant A4,249,943594,002
Events in quadrant B3,757,736606,049
Events in quadrant C4,024,062579,703
Events in quadrant D5,910,600554,374

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175673
B0159022
C0165922
D0226982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73973594.853319%
B73971131.527646%
C73971982.676761%
D73974826.516155%

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 9083 7399 168 168 1.85% 2.27%
B 9083 7398 1 1 0.01% 0.01%
C 9083 7398 53 53 0.58% 0.72%
D 9083 7399 419 419 4.61% 5.66%

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 15 174 737413 3977.81 913 893 185.2
A 0 226 8067 38.75 913 893 185.2
A 12 194 6794 31.87 913 893 185.2
B 0 189 61463 336.53 925 902 180.0
B 4 48 23139 123.57 925 902 180.0
B 12 111 21250 113.07 925 902 180.0
C 9 236 396085 1899.69 889 895 208.0
C 14 238 134156 640.59 889 895 208.0
C 3 233 16448 74.76 889 895 208.0
D 15 0 1560545 7249.94 889 864 215.1
D 1 52 673558 3126.91 889 864 215.1
D 5 222 309866 1436.35 889 864 215.1

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