ASTROSAT CZTI

Data Quality Report

Orbit 22224

Creation date: 2024-06-27T18:38:18.963564
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_054T01_9000003286_22224cztM0_level2.evt modeM0/AS1A07_054T01_9000003286_22224cztM0_level2_quad_clean.evt
Size (bytes)449,804,160127,203,840
Size429.0 MB 121.3 MB
Events in quadrant A3,180,946862,464
Events in quadrant B3,294,223866,093
Events in quadrant C3,191,622823,931
Events in quadrant D3,482,322815,584

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141011
B0142311
C0140371
D0152081

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6949230.330983%
B6950400.575540%
C6950761.093525%
D6950400.575540%

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 7324 6950 1 1 0.01% 0.01%
B 7325 6951 1 1 0.01% 0.01%
C 7325 6951 0 0 0.00% 0.00%
D 7325 6951 7 7 0.10% 0.10%

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 5 168 15916 90.63 820 799 166.8
A 13 254 10764 59.74 820 799 166.8
A 3 137 7312 39.05 820 799 166.8
B 0 245 62363 395.13 812 791 155.8
B 0 190 24214 150.31 812 791 155.8
B 12 111 18931 116.41 812 791 155.8
C 14 238 123542 672.14 781 784 182.6
C 8 128 10616 53.83 781 784 182.6
C 0 10 7047 34.29 781 784 182.6
D 12 227 103341 528.59 795 770 194.0
D 2 16 84369 430.82 795 770 194.0
D 1 52 73170 373.11 795 770 194.0

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