ASTROSAT CZTI

Data Quality Report

Orbit 46785

Creation date: 2024-06-27T23:27:37.209025
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_053T01_9000006266_46785cztM0_level2.fits modeM0/AS1A13_053T01_9000006266_46785cztM0_level2_quad_clean.evt
Size (bytes)507,709,440114,652,800
Size484.2 MB 109.3 MB
Events in quadrant A6,710,364759,724
Events in quadrant B3,531,040785,544
Events in quadrant C3,142,833753,269
Events in quadrant D4,844,062666,018

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243200
B0156760
C0149500
D0195210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72861942.662641%
B7286720.988197%
C7286140.192149%
D72863815.229207%

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 7286 7286 100 100 1.37% 1.37%
B 7286 7286 22 22 0.30% 0.30%
C 7286 7286 1 1 0.01% 0.01%
D 7286 7286 360 360 4.94% 4.94%

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 3272563 19803.66 787 766 165.2
A 13 248 351206 2121.16 787 766 165.2
A 2 79 23971 140.46 787 766 165.2
B 3 112 246413 1582.29 784 760 155.3
B 5 255 50797 322.3 784 760 155.3
B 5 172 34260 215.78 784 760 155.3
C 15 208 39639 211.03 782 785 184.1
C 14 254 23064 121.0 782 785 184.1
C 3 233 15126 77.89 782 785 184.1
D 13 249 918389 4795.84 766 742 191.3
D 1 52 398094 2076.66 766 742 191.3
D 2 249 311589 1624.56 766 742 191.3

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