ASTROSAT CZTI

Data Quality Report

Orbit 11533

Creation date: 2024-06-27T16:14:21.471631
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_022T05_9000001690_11533cztM0_level2.evt modeM0/AS1A04_022T05_9000001690_11533cztM0_level2_quad_clean.evt
Size (bytes)607,432,32066,205,440
Size579.3 MB 63.1 MB
Events in quadrant A6,144,490366,443
Events in quadrant B3,867,524389,868
Events in quadrant C3,087,100410,961
Events in quadrant D4,851,588378,113

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227663
B0154982
C0135082
D0187492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A657874611.340833%
B65781983.010033%
C6578340.516874%
D65782473.754941%

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 7709 6579 496 496 6.43% 7.54%
B 7709 6580 91 91 1.18% 1.38%
C 7709 6580 1 1 0.01% 0.02%
D 7709 6580 180 180 2.33% 2.74%

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 8 5 2980098 18955.47 780 764 157.2
A 1 162 45903 287.19 780 764 157.2
A 1 178 22187 136.3 780 764 157.2
B 4 239 572535 3673.13 811 792 155.7
B 15 204 83608 532.05 811 792 155.7
B 0 214 19007 117.02 811 792 155.7
C 13 61 5778 27.18 790 795 183.3
C 7 159 3645 15.55 790 795 183.3
C 7 236 3568 15.13 790 795 183.3
D 1 52 980791 5263.24 776 754 186.2
D 5 222 548710 2942.77 776 754 186.2
D 2 120 100586 536.14 776 754 186.2

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