ASTROSAT CZTI

Data Quality Report

Orbit 13393

Creation date: 2024-06-27T16:40:08.235220
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_103T01_9000001988_13393cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13393cztM0_level2_quad_clean.evt
Size (bytes)562,343,040109,414,080
Size536.3 MB 104.3 MB
Events in quadrant A3,635,244710,646
Events in quadrant B4,916,459679,407
Events in quadrant C4,108,085703,745
Events in quadrant D3,834,508670,411

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163323
B0199302
C0174542
D0169492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7901350.442982%
B79016307.973674%
C7901750.949247%
D7901570.721428%

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 8602 7903 1 1 0.01% 0.01%
B 8602 7903 391 391 4.55% 4.95%
C 8602 7903 31 31 0.36% 0.39%
D 8602 7904 47 47 0.55% 0.59%

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 69 14983 72.86 938 915 193.1
A 1 162 10926 51.85 938 915 193.1
A 0 226 8336 38.43 938 915 193.1
B 3 64 1273261 7420.28 897 874 171.5
B 4 142 69179 398.34 897 874 171.5
B 0 214 30582 173.25 897 874 171.5
C 14 220 403957 1886.11 919 922 213.7
C 3 233 115695 537.11 919 922 213.7
C 13 61 6486 26.04 919 922 213.7
D 1 52 163123 747.85 903 876 217.0
D 8 195 114204 522.37 903 876 217.0
D 2 136 110825 506.79 903 876 217.0

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