ASTROSAT CZTI

Data Quality Report

Orbit 28316

Creation date: 2024-06-27T19:50:24.054574
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/AS1A10_102T10_9000004080_28316cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28316cztM0_level2_quad_clean.evt
Size (bytes)395,415,36082,356,480
Size377.1 MB 78.5 MB
Events in quadrant A2,691,923522,001
Events in quadrant B2,805,924540,838
Events in quadrant C2,729,260519,924
Events in quadrant D3,344,922497,957

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119190
B0121340
C0119810
D0139590

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5831470.806037%
B5826791.355990%
C5838761.301816%
D5795741.276963%

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 7564 6459 0 0 0.00% 0.00%
B 7566 6501 4 4 0.05% 0.06%
C 7566 6499 0 0 0.00% 0.00%
D 7567 6508 44 44 0.58% 0.68%

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 13 254 9857 65.6 696 682 139.9
A 3 137 7051 45.54 696 682 139.9
A 0 226 5704 35.91 696 682 139.9
B 4 200 40924 302.2 693 674 133.2
B 10 246 20302 147.37 693 674 133.2
B 0 230 19891 144.28 693 674 133.2
C 14 238 109695 694.24 670 672 157.0
C 3 233 9398 55.57 670 672 157.0
C 13 61 4749 25.96 670 672 157.0
D 1 52 520210 3292.04 665 645 157.8
D 13 104 85315 536.48 665 645 157.8
D 8 195 81368 511.47 665 645 157.8

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