ASTROSAT CZTI

Data Quality Report

Orbit 38361

Creation date: 2024-06-27T21:51:40.189945
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/AS1A10_094T24_9000005374_38361cztM0_level2.fits modeM0/AS1A10_094T24_9000005374_38361cztM0_level2_quad_clean.evt
Size (bytes)498,775,68090,072,000
Size475.7 MB 85.9 MB
Events in quadrant A3,098,568669,040
Events in quadrant B2,833,397678,221
Events in quadrant C2,544,038640,227
Events in quadrant D9,592,697383,999

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123043
B0117312
C0105292
D0319842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5079290.570979%
B5079571.122268%
C5079140.275645%
D5079201539.673164%

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 7203 5080 4 4 0.06% 0.08%
B 7203 5080 27 27 0.37% 0.53%
C 7203 5080 6 6 0.08% 0.12%
D 7203 5079 2573 2573 35.72% 50.66%

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 10 83 410594 3370.62 602 593 121.6
A 12 16 212548 1742.48 602 593 121.6
A 9 143 56733 461.53 602 593 121.6
B 0 183 151694 1349.14 601 587 112.0
B 5 172 93132 826.28 601 587 112.0
B 15 35 48766 430.16 601 587 112.0
C 15 214 215213 1598.65 580 584 134.3
C 0 10 47680 350.79 580 584 134.3
C 0 207 7872 54.28 580 584 134.3
D 10 203 6937096 52904.01 539 523 131.1
D 2 16 246440 1875.56 539 523 131.1
D 12 235 147878 1123.85 539 523 131.1

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