ASTROSAT CZTI

Data Quality Report

Orbit 11165

Creation date: 2024-06-27T16:09:14.624006
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_042T01_9000001630_11165cztM0_level2.evt modeM0/AS1A04_042T01_9000001630_11165cztM0_level2_quad_clean.evt
Size (bytes)645,719,04077,670,720
Size615.8 MB 74.1 MB
Events in quadrant A5,035,500481,375
Events in quadrant B4,711,481485,906
Events in quadrant C2,848,062499,376
Events in quadrant D6,531,107441,418

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019247125
B018437250
C01310561
D024115247

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63453976.256895%
B63304607.266983%
C6365370.581304%
D634366710.515529%

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 6710 6381 251 251 3.74% 3.93%
B 6709 6368 239 239 3.56% 3.75%
C 6710 6392 0 0 0.00% 0.00%
D 6710 6382 659 659 9.82% 10.33%

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 1018462 6602.87 737 719 154.1
A 14 238 862617 5591.79 737 719 154.1
A 8 5 280103 1812.58 737 719 154.1
B 4 239 994572 7014.93 735 718 141.7
B 10 16 473459 3336.75 735 718 141.7
B 15 204 100203 702.2 735 718 141.7
C 13 61 5474 27.77 729 732 170.8
C 14 67 2126 8.16 729 732 170.8
C 3 202 1828 6.42 729 732 170.8
D 10 157 2585321 14842.52 704 684 174.1
D 12 16 953076 5469.2 704 684 174.1
D 14 34 93177 531.15 704 684 174.1

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