ASTROSAT CZTI

Data Quality Report

Orbit 43613

Creation date: 2024-06-27T22:53:39.794702
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/AS1A12_095T02_9000005892_43613cztM0_level2.fits modeM0/AS1A12_095T02_9000005892_43613cztM0_level2_quad_clean.evt
Size (bytes)2,405,522,880158,886,720
Size2.2 GB 151.5 MB
Events in quadrant A8,937,4121,489,981
Events in quadrant B14,560,9211,459,895
Events in quadrant C34,058,350328,972
Events in quadrant D30,405,422545,616

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036716550
B053857745
C01130032268
D01015051656

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02975
B02962
C02951
D02977

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A141243022.138204%
B14090223715.876508%
C140191363297.239461%
D140491197585.237383%

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 16118 14180 78 78 0.48% 0.55%
B 16118 14152 1230 1230 7.63% 8.69%
C 16117 14024 12362 12362 76.70% 88.15%
D 16118 14070 9837 9837 61.03% 69.91%

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 1720881 5152.34 1607 1571 333.7
A 15 223 468919 1400.52 1607 1571 333.7
A 0 209 102969 303.86 1607 1571 333.7
B 4 206 4930692 16616.83 1530 1484 296.6
B 5 235 1587111 5345.3 1530 1484 296.6
B 12 3 537826 1808.06 1530 1484 296.6
C 15 142 12668832 140012.02 382 383 90.5
C 15 174 9298598 102764.11 382 383 90.5
C 15 158 9083163 100383.11 382 383 90.5
D 4 212 13192982 64181.39 723 694 205.5
D 13 187 4149551 20184.47 723 694 205.5
D 4 221 2319135 11279.37 723 694 205.5

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