ASTROSAT CZTI

Data Quality Report

Orbit 21043

Creation date: 2024-06-27T18:22:51.543175
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/AS1A05_104T04_9000003108_21043cztM0_level2.evt modeM0/AS1A05_104T04_9000003108_21043cztM0_level2_quad_clean.evt
Size (bytes)277,228,80062,674,560
Size264.4 MB 59.8 MB
Events in quadrant A1,984,415408,079
Events in quadrant B2,052,475416,754
Events in quadrant C2,007,699397,751
Events in quadrant D2,070,978385,920

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086501
B088061
C087851
D090151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4104200.487329%
B4104370.901559%
C4104581.413255%
D4104451.096491%

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 5264 4105 0 0 0.00% 0.00%
B 5264 4105 2 2 0.04% 0.05%
C 5264 4105 0 0 0.00% 0.00%
D 5264 4105 20 20 0.38% 0.49%

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 5402 46.78 515 504 104.7
A 0 226 4348 36.71 515 504 104.7
A 3 137 4208 35.38 515 504 104.7
B 0 197 21777 215.82 514 501 98.6
B 12 111 11670 113.3 514 501 98.6
B 11 111 10484 101.27 514 501 98.6
C 14 238 78190 667.45 494 496 116.4
C 13 61 3487 25.7 494 496 116.4
C 12 2 1541 8.98 494 496 116.4
D 1 52 109689 903.08 498 484 120.9
D 2 14 47993 392.88 498 484 120.9
D 13 172 18029 145.09 498 484 120.9

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