ASTROSAT CZTI

Data Quality Report

Orbit 48081

Creation date: 2024-08-20T12:00:03.113595
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_071T07_9000006398_48081cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48081cztM0_level2_quad_clean.evt
Size (bytes)392,019,84075,960,000
Size373.9 MB 72.4 MB
Events in quadrant A6,387,879633,081
Events in quadrant B1,058,56439,235
Events in quadrant C3,552,831623,123
Events in quadrant D3,040,116583,980

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232291
B065411
C0150841
D0135371

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59792524.214752%
B5980597899.966555%
C59803425.719064%
D5980731.220736%

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 6934 5979 59 59 0.85% 0.99%
B 6934 5979 0 0 0.00% 0.00%
C 6935 5981 288 288 4.15% 4.82%
D 6935 5981 33 33 0.48% 0.55%

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 3704588 27690.96 638 624 133.8
A 13 248 160538 1195.52 638 624 133.8
A 7 3 48647 359.02 638 624 133.8
B 2 177 824503 79103.41 41 40 10.4
B 4 21 57178 5482.13 41 40 10.4
B 5 32 5149 490.18 41 40 10.4
C 14 254 1037673 7159.52 615 618 144.8
C 10 20 56946 388.87 615 618 144.8
C 12 250 15662 103.86 615 618 144.8
D 2 249 273993 1716.52 630 610 159.3
D 2 165 128099 800.48 630 610 159.3
D 13 29 34844 214.95 630 610 159.3

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