ASTROSAT CZTI

Data Quality Report

Orbit 22859

Creation date: 2024-06-27T18:46:41.932294
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_9000003378_22859cztM0_level2.evt modeM0/AS1A07_054T01_9000003378_22859cztM0_level2_quad_clean.evt
Size (bytes)443,776,320124,859,520
Size423.2 MB 119.1 MB
Events in quadrant A3,147,597858,154
Events in quadrant B3,154,397856,343
Events in quadrant C3,022,364805,061
Events in quadrant D3,666,357801,720

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136801
B0136131
C0133871
D0151591

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6597701.061088%
B6598821.242801%
C6597871.318781%
D6597821.242989%

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 7072 6598 0 0 0.00% 0.00%
B 7073 6599 8 8 0.11% 0.12%
C 7072 6598 0 0 0.00% 0.00%
D 7072 6598 29 29 0.41% 0.44%

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 11 47 107626 674.99 785 769 158.3
A 13 254 11075 65.1 785 769 158.3
A 13 252 9413 54.6 785 769 158.3
B 15 33 34910 233.83 776 756 146.1
B 0 190 21034 138.83 776 756 146.1
B 0 189 20926 138.09 776 756 146.1
C 14 238 118701 685.24 741 743 172.1
C 7 247 8553 45.37 741 743 172.1
C 13 61 5302 26.48 741 743 172.1
D 7 238 199169 1077.39 757 735 184.2
D 13 153 192389 1040.57 757 735 184.2
D 10 230 93423 503.24 757 735 184.2

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