ASTROSAT CZTI

Data Quality Report

Orbit 13416

Creation date: 2024-06-27T16:40:27.452145
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/AS1A04_103T01_9000001988_13416cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13416cztM0_level2_quad_clean.evt
Size (bytes)490,723,20070,767,360
Size468.0 MB 67.5 MB
Events in quadrant A3,415,158431,712
Events in quadrant B3,873,168420,808
Events in quadrant C3,373,507427,649
Events in quadrant D3,757,391408,058

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144353
B0157212
C0142112
D0155922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6516931.427256%
B65163004.604052%
C6516691.058932%
D6516911.396562%

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 7767 6517 0 0 0.00% 0.00%
B 7767 6517 143 143 1.84% 2.19%
C 7767 6517 0 0 0.00% 0.00%
D 7767 6517 9 9 0.12% 0.14%

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 15 43481 243.36 873 856 175.2
A 0 226 7865 40.02 873 856 175.2
A 1 162 7479 37.81 873 856 175.2
B 3 64 464963 2923.25 852 834 158.8
B 0 230 30318 185.7 852 834 158.8
B 4 142 27786 169.75 852 834 158.8
C 3 233 85551 444.72 839 844 190.5
C 14 220 16739 83.45 839 844 190.5
C 13 61 5961 26.86 839 844 190.5
D 8 195 349224 1771.18 833 811 196.7
D 1 52 99025 499.28 833 811 196.7
D 5 222 59428 297.98 833 811 196.7

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