ASTROSAT CZTI

Data Quality Report

Orbit 10832

Creation date: 2024-06-27T16:04:19.721967
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/AS1A03_086T01_9000001568_10832cztM0_level2.evt modeM0/AS1A03_086T01_9000001568_10832cztM0_level2_quad_clean.evt
Size (bytes)603,665,280107,570,880
Size575.7 MB 102.6 MB
Events in quadrant A5,525,695679,968
Events in quadrant B4,739,760691,843
Events in quadrant C3,520,701698,498
Events in quadrant D3,980,997658,917

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01562

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02166837
B01912931
C01569113
D01719414

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75894676.153643%
B75893294.335222%
C7594270.355544%
D7594871.145641%

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 7974 7600 310 310 3.89% 4.08%
B 7975 7601 139 139 1.74% 1.83%
C 7975 7601 3 3 0.04% 0.04%
D 7975 7601 39 39 0.49% 0.51%

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 2061854 11215.34 890 871 183.8
A 13 251 13721 69.93 890 871 183.8
A 11 29 10587 52.87 890 871 183.8
B 4 239 989896 5650.47 913 894 175.0
B 0 214 83778 473.54 913 894 175.0
B 4 173 34345 191.12 913 894 175.0
C 5 128 12570 55.61 896 904 209.8
C 14 234 8077 34.19 896 904 209.8
C 13 61 6589 27.1 896 904 209.8
D 1 52 164824 761.86 885 861 215.2
D 13 104 111807 515.51 885 861 215.2
D 8 195 84863 390.32 885 861 215.2

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