ASTROSAT CZTI

Data Quality Report

Orbit 19009

Creation date: 2024-06-27T17:58:02.696702
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/AS1A06_003T05_9000002830_19009cztM0_level2.evt modeM0/AS1A06_003T05_9000002830_19009cztM0_level2_quad_clean.evt
Size (bytes)655,977,60082,658,880
Size625.6 MB 78.8 MB
Events in quadrant A6,317,470472,448
Events in quadrant B4,344,799516,196
Events in quadrant C3,894,123495,771
Events in quadrant D4,783,010478,131

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238773
B0178592
C0163562
D0194042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7763128716.578642%
B77644786.156620%
C77644065.229263%
D77644776.143740%

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 7778 7764 605 605 7.78% 7.79%
B 7779 7765 44 44 0.57% 0.57%
C 7779 7765 0 0 0.00% 0.00%
D 7779 7765 151 151 1.94% 1.94%

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 14 235 2810938 15133.56 907 885 185.7
A 9 143 7995 38.29 907 885 185.7
A 0 226 7872 37.63 907 885 185.7
B 3 112 423880 2279.33 960 933 185.6
B 10 245 44986 237.41 960 933 185.6
B 7 220 44869 236.78 960 933 185.6
C 14 238 143033 656.66 924 928 216.4
C 3 233 127793 586.24 924 928 216.4
C 9 54 6940 27.78 924 928 216.4
D 2 233 642015 2799.06 935 906 229.0
D 7 238 431510 1880.0 935 906 229.0
D 1 52 88284 381.49 935 906 229.0

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