ASTROSAT CZTI

Data Quality Report

Orbit 43638

Creation date: 2024-06-27T22:53:57.974327
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/AS1A12_068T05_9000005894_43638cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43638cztM0_level2_quad_clean.evt
Size (bytes)1,230,059,520114,310,080
Size1.1 GB 109.0 MB
Events in quadrant A5,785,759889,021
Events in quadrant B8,626,417862,111
Events in quadrant C19,863,453420,040
Events in quadrant D10,634,362723,444

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230291
B0313381
C0645781
D0372991

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80742202.724796%
B8075138917.201238%
C8075745292.284830%
D8074186323.074065%

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 8074 8074 128 128 1.59% 1.59%
B 8075 8075 720 720 8.92% 8.92%
C 8074 8074 7088 7088 87.79% 87.79%
D 8074 8074 1216 1216 15.06% 15.06%

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 917283 4935.06 911 891 185.7
A 15 223 754467 4058.24 911 891 185.7
A 15 222 158393 848.2 911 891 185.7
B 4 206 3920752 23646.18 866 840 165.8
B 5 235 1012017 6099.75 866 840 165.8
B 0 200 54586 324.21 866 840 165.8
C 15 142 10776832 102327.07 448 450 105.3
C 15 174 3160108 30002.51 448 450 105.3
C 3 233 2486328 23604.64 448 450 105.3
D 4 221 1764108 8355.04 828 800 211.0
D 4 216 772603 3657.01 828 800 211.0
D 1 52 556574 2633.41 828 800 211.0

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