ASTROSAT CZTI

Data Quality Report

Orbit 25592

Creation date: 2024-06-27T19:19:19.166233
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/AS1A09_043T02_9000003726_25592cztM0_level2.evt modeM0/AS1A09_043T02_9000003726_25592cztM0_level2_quad_clean.evt
Size (bytes)689,420,16070,315,200
Size657.5 MB 67.1 MB
Events in quadrant A5,750,546423,089
Events in quadrant B3,669,900457,324
Events in quadrant C3,487,448420,478
Events in quadrant D7,543,344385,511

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213770
B0146780
C0139740
D0269410

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A634078212.334385%
B63401642.586751%
C63401672.634069%
D633997115.317873%

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 7610 6341 479 479 6.29% 7.55%
B 7610 6341 0 0 0.00% 0.00%
C 7610 6341 0 0 0.00% 0.00%
D 7609 6340 733 733 9.63% 11.56%

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 8 192 1896133 10547.54 903 889 179.7
A 6 16 344593 1912.8 903 889 179.7
A 9 130 32125 173.84 903 889 179.7
B 0 219 47376 271.38 917 899 171.3
B 12 111 20170 112.52 917 899 171.3
B 11 111 17804 98.71 917 899 171.3
C 14 238 139311 693.47 857 864 199.6
C 3 233 6218 26.82 857 864 199.6
C 13 61 5856 25.0 857 864 199.6
D 1 52 2229658 11154.73 823 799 199.8
D 9 35 1074190 5371.98 823 799 199.8
D 8 195 723608 3617.43 823 799 199.8

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