ASTROSAT CZTI

Data Quality Report

Orbit 04033

Creation date: 2024-06-27T14:36:34.479080
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/AS1G05_246T03_9000000516_04033cztM0_level2.evt modeM0/AS1G05_246T03_9000000516_04033cztM0_level2_quad_clean.evt
Size (bytes)487,509,12081,869,760
Size464.9 MB 78.1 MB
Events in quadrant A3,754,397507,345
Events in quadrant B3,486,437510,346
Events in quadrant C2,933,134514,088
Events in quadrant D4,146,348491,333

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157982
B0148341
C0134621
D0169421

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65472193.345044%
B6547841.283030%
C6547500.763709%
D65471822.779899%

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 7492 6547 114 114 1.52% 1.74%
B 7492 6548 25 25 0.33% 0.38%
C 7492 6547 1 1 0.01% 0.02%
D 7492 6547 103 103 1.37% 1.57%

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 0 50 406968 2699.13 734 716 150.5
A 0 118 268055 1776.2 734 716 150.5
A 8 15 183418 1213.87 734 716 150.5
B 10 16 175881 1212.18 745 727 144.5
B 15 204 147820 1017.98 745 727 144.5
B 4 81 86438 593.18 745 727 144.5
C 9 144 89049 521.11 726 727 169.5
C 12 4 6887 36.34 726 727 169.5
C 13 61 6294 32.85 726 727 169.5
D 11 132 613863 3530.36 719 697 173.7
D 2 232 368869 2119.78 719 697 173.7
D 8 112 279110 1602.99 719 697 173.7

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