ASTROSAT CZTI

Data Quality Report

Orbit 20231129_A13_074T12_9000005960_level2

Creation date: 2023-11-30T10:47:53.385015
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/AS1A13_074T12_9000005960cztM0_level2.fits modeM0/AS1A13_074T12_9000005960cztM0_level2_quad_clean.evt
Size (bytes)128,030,40096,171,840
Size122.1 MB 91.7 MB
Events in quadrant A791,002538,144
Events in quadrant B728,972491,547
Events in quadrant C790,598526,010
Events in quadrant D583,056373,907

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0473880
B0443300
C0328100
D0638830

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02880
B02880
C02880
D02880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A142216754.746502%
B14221175712.354968%
C142211821.279797%
D14221354724.941987%

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 17821 14214 0 0 0.00% 0.00%
B 17821 14191 0 0 0.00% 0.00%
C 17821 14219 0 0 0.00% 0.00%
D 17821 14147 0 0 0.00% 0.00%

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 0 29 657 8.74 206 194 53.0
A 7 110 655 8.7 206 194 53.0
A 15 236 595 7.57 206 194 53.0
B 2 9 615 10.77 193 184 40.0
B 3 17 535 8.77 193 184 40.0
B 5 128 494 7.75 193 184 40.0
C 1 81 587 7.08 210 196 55.2
C 3 202 584 7.03 210 196 55.2
C 9 188 578 6.92 210 196 55.2
D 7 3 448 6.24 167 152 47.4
D 6 67 435 5.97 167 152 47.4
D 6 79 430 5.86 167 152 47.4

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