ASTROSAT CZTI

Data Quality Report

Orbit 09242

Creation date: 2024-06-27T15:43:09.314179
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/AS1A03_051T01_9000001288_09242cztM0_level2.evt modeM0/AS1A03_051T01_9000001288_09242cztM0_level2_quad_clean.evt
Size (bytes)248,440,32043,994,880
Size236.9 MB 42.0 MB
Events in quadrant A2,163,126266,700
Events in quadrant B1,626,504285,634
Events in quadrant C1,517,416279,847
Events in quadrant D1,988,809263,891

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08816
B08816
C08711
D08818

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114662890
B089211921
C087621808
D0105682587

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B031
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32161785.534826%
B33351183.538231%
C3367882.613603%
D32801223.719512%

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 4562 3695 40 40 0.88% 1.08%
B 4562 3792 0 0 0.00% 0.00%
C 4562 3815 0 0 0.00% 0.00%
D 4562 3741 21 21 0.46% 0.56%

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 5 656916 8236.61 380 370 79.7
A 5 16 27300 337.85 380 370 79.7
A 13 251 8668 104.1 380 370 79.7
B 0 214 28870 362.9 395 384 78.5
B 0 168 26825 336.85 395 384 78.5
B 0 245 14209 176.13 395 384 78.5
C 9 68 4050 39.86 387 388 91.9
C 13 61 2960 28.0 387 388 91.9
C 14 67 1469 11.77 387 388 91.9
D 1 52 484784 4734.43 376 365 102.3
D 12 233 23432 225.44 376 365 102.3
D 7 71 15091 143.92 376 365 102.3

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