ASTROSAT CZTI

Data Quality Report

Orbit 06568

Creation date: 2024-06-27T15:08:53.763408
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/AS1G05_246T04_9000000882_06568cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06568cztM0_level2_quad_clean.evt
Size (bytes)457,231,68080,746,560
Size436.1 MB 77.0 MB
Events in quadrant A2,954,316500,257
Events in quadrant B3,311,258505,664
Events in quadrant C2,971,877505,012
Events in quadrant D4,172,797485,290

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132693
B0142472
C0133452
D0167992

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6429190.295536%
B64291121.742106%
C6429160.248872%
D6430921.430793%

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 7569 6430 0 0 0.00% 0.00%
B 7569 6430 51 51 0.67% 0.79%
C 7569 6430 0 0 0.00% 0.00%
D 7570 6431 28 28 0.37% 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 14 111 10483 62.45 761 744 155.9
A 8 15 9199 54.22 761 744 155.9
A 0 226 7393 42.64 761 744 155.9
B 0 219 138312 938.06 768 750 146.6
B 4 172 67457 454.89 768 750 146.6
B 4 48 32185 214.36 768 750 146.6
C 10 22 41344 234.14 748 751 173.4
C 13 61 6003 30.29 748 751 173.4
C 14 67 2976 12.83 748 751 173.4
D 12 221 941167 5074.71 743 719 185.3
D 8 195 156375 839.93 743 719 185.3
D 2 33 93354 499.86 743 719 185.3

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