ASTROSAT CZTI

Data Quality Report

Orbit 45563

Creation date: 2024-06-27T23:13:41.429267
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_071T04_9000006110_45563cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45563cztM0_level2_quad_clean.evt
Size (bytes)482,803,200111,297,600
Size460.4 MB 106.1 MB
Events in quadrant A5,900,074741,688
Events in quadrant B3,569,958760,166
Events in quadrant C3,206,542738,292
Events in quadrant D4,679,213665,994

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221372
B0151182
C0142782
D0184842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66492754.135960%
B66492343.519326%
C6650530.796992%
D66492313.474207%

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 7664 6650 28 28 0.37% 0.42%
B 7664 6650 99 99 1.29% 1.49%
C 7665 6651 18 18 0.23% 0.27%
D 7664 6650 152 152 1.98% 2.29%

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 2857869 18284.93 758 743 156.3
A 10 248 57633 364.08 758 743 156.3
A 13 248 46682 294.0 758 743 156.3
B 5 172 269686 1859.16 750 729 144.7
B 12 18 185376 1276.37 750 729 144.7
B 4 171 40777 276.83 750 729 144.7
C 12 2 296872 1721.47 739 743 172.0
C 0 207 20970 117.58 739 743 172.0
C 13 61 4898 24.15 739 743 172.0
D 12 233 426781 2303.11 735 710 185.0
D 1 52 352548 1901.85 735 710 185.0
D 5 33 336512 1815.16 735 710 185.0

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