ASTROSAT CZTI

Data Quality Report

Orbit 22584

Creation date: 2024-06-27T18:43:08.502133
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/AS1C05_002T01_9000003352_22584cztM0_level2.evt modeM0/AS1C05_002T01_9000003352_22584cztM0_level2_quad_clean.evt
Size (bytes)485,997,12088,928,640
Size463.5 MB 84.8 MB
Events in quadrant A3,287,477553,035
Events in quadrant B3,382,520563,203
Events in quadrant C3,393,074549,038
Events in quadrant D4,174,602534,847

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144771
B0146381
C0145951
D0172071

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7083290.409431%
B7083460.649442%
C7082941.327309%
D70822293.233550%

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 7533 7084 0 0 0.00% 0.00%
B 7533 7084 2 2 0.03% 0.03%
C 7532 7083 0 0 0.00% 0.00%
D 7532 7083 200 200 2.66% 2.82%

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 13 254 11815 63.86 851 829 172.0
A 3 137 7410 38.25 851 829 172.0
A 0 226 7161 36.81 851 829 172.0
B 12 111 19769 116.74 850 827 162.3
B 11 111 17411 102.2 850 827 162.3
B 0 230 15605 91.07 850 827 162.3
C 14 238 132667 678.64 825 828 194.3
C 10 222 36228 182.22 825 828 194.3
C 10 22 8146 37.67 825 828 194.3
D 1 52 791729 3914.29 824 800 202.1
D 10 199 82208 402.89 824 800 202.1
D 12 227 63479 310.2 824 800 202.1

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