ASTROSAT CZTI

Data Quality Report

Orbit 10322

Creation date: 2024-06-27T15:57:53.974336
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_124T01_9000001486_10322cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10322cztM0_level2_quad_clean.evt
Size (bytes)481,138,56092,825,280
Size458.8 MB 88.5 MB
Events in quadrant A3,433,089597,141
Events in quadrant B3,737,005599,055
Events in quadrant C3,160,071583,204
Events in quadrant D3,778,393557,108

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144523
B0152802
C0139222
D0154552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68031271.866823%
B68031632.396002%
C6803650.955461%
D68032073.042775%

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 7793 6803 20 20 0.26% 0.29%
B 7793 6803 48 48 0.62% 0.71%
C 7793 6803 1 1 0.01% 0.01%
D 7793 6803 107 107 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 8 5 115954 676.36 838 822 170.2
A 8 15 60928 353.1 838 822 170.2
A 4 2 19980 112.55 838 822 170.2
B 4 239 379885 2391.57 832 815 158.5
B 11 51 78186 488.14 832 815 158.5
B 0 214 34122 210.14 832 815 158.5
C 14 234 10162 50.37 807 810 185.7
C 13 61 6038 28.16 807 810 185.7
C 1 3 2244 7.72 807 810 185.7
D 2 14 264117 1367.23 802 780 192.6
D 8 195 206772 1069.5 802 780 192.6
D 2 33 173611 897.33 802 780 192.6

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