ASTROSAT CZTI

Data Quality Report

Orbit 22013

Creation date: 2024-06-27T18:35:18.078431
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/AS1A07_153T02_9000003250_22013cztM0_level2.evt modeM0/AS1A07_153T02_9000003250_22013cztM0_level2_quad_clean.evt
Size (bytes)430,188,48079,865,280
Size410.3 MB 76.2 MB
Events in quadrant A2,958,944511,674
Events in quadrant B3,051,615520,425
Events in quadrant C3,000,135492,133
Events in quadrant D3,615,462480,834

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125201
B0127371
C0126702
D0146941

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5910661.116751%
B5911751.268821%
C59101071.810491%
D59101342.267343%

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 7045 5910 0 0 0.00% 0.00%
B 7046 5911 2 2 0.03% 0.03%
C 7045 5910 1 1 0.01% 0.02%
D 7045 5910 67 67 0.95% 1.13%

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 9836 59.49 766 752 152.7
A 0 226 6591 38.24 766 752 152.7
A 3 137 6136 35.26 766 752 152.7
B 3 64 50742 353.41 756 737 141.5
B 0 230 18226 123.6 756 737 141.5
B 12 111 16689 112.74 756 737 141.5
C 14 238 117065 679.51 735 741 171.2
C 0 10 13747 75.97 735 741 171.2
C 13 61 4925 24.44 735 741 171.2
D 1 52 505896 2813.51 746 725 179.6
D 2 136 105715 584.73 746 725 179.6
D 13 172 57112 314.04 746 725 179.6

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