ASTROSAT CZTI

Data Quality Report

Orbit 24552

Creation date: 2024-06-27T19:07:11.066596
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/AS1T03_187T01_9000003608_24552cztM0_level2.evt modeM0/AS1T03_187T01_9000003608_24552cztM0_level2_quad_clean.evt
Size (bytes)531,653,760103,786,560
Size507.0 MB 99.0 MB
Events in quadrant A3,247,241691,161
Events in quadrant B3,298,652698,616
Events in quadrant C3,326,967653,061
Events in quadrant D5,761,126620,579

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140672
B0141892
C0143022
D0217572

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6878320.465252%
B6878470.683338%
C6878781.134051%
D68785748.345449%

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 7608 6879 0 0 0.00% 0.00%
B 7608 6879 1 1 0.01% 0.01%
C 7608 6879 8 8 0.11% 0.12%
D 7608 6879 404 404 5.31% 5.87%

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 10545 58.48 840 824 166.2
A 3 137 7678 41.23 840 824 166.2
A 0 226 7190 38.3 840 824 166.2
B 0 190 23439 144.2 832 813 156.9
B 12 111 18930 115.46 832 813 156.9
B 11 111 16927 102.7 832 813 156.9
C 14 238 128716 697.35 791 794 183.4
C 2 16 78556 423.91 791 794 183.4
C 10 9 16457 85.38 791 794 183.4
D 8 195 1248908 6556.17 780 756 190.4
D 1 52 787570 4132.9 780 756 190.4
D 9 1 313184 1641.09 780 756 190.4

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