ASTROSAT CZTI

Data Quality Report

Orbit 23086

Creation date: 2024-06-27T18:49:34.174029
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_049T01_9000003408_23086cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23086cztM0_level2_quad_clean.evt
Size (bytes)500,270,40087,635,520
Size477.1 MB 83.6 MB
Events in quadrant A3,348,934553,687
Events in quadrant B3,382,491577,950
Events in quadrant C4,434,596541,961
Events in quadrant D3,553,171536,316

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138752
B0138922
C0173982
D0145912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6359310.487498%
B6359450.707658%
C63602223.490566%
D6360330.518868%

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 7729 6360 7 7 0.09% 0.11%
B 7729 6360 8 8 0.10% 0.13%
C 7730 6360 50 50 0.65% 0.79%
D 7730 6361 11 11 0.14% 0.17%

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 6 16 107004 638.25 841 827 166.4
A 13 254 9966 54.94 841 827 166.4
A 0 226 7037 37.33 841 827 166.4
B 4 216 25306 155.25 848 830 157.7
B 12 111 18535 112.3 848 830 157.7
B 11 111 16332 98.33 848 830 157.7
C 10 187 882809 4622.75 825 834 190.8
C 0 10 179661 937.3 825 834 190.8
C 14 238 131035 682.43 825 834 190.8
D 1 52 174303 863.32 836 814 201.0
D 7 238 150317 743.96 836 814 201.0
D 12 227 26100 125.83 836 814 201.0

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