ASTROSAT CZTI

Data Quality Report

Orbit 30024

Creation date: 2024-06-27T20:10:01.165785
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/AS1A10_071T03_9000004314_30024cztM0_level2.evt modeM0/AS1A10_071T03_9000004314_30024cztM0_level2_quad_clean.evt
Size (bytes)530,354,88094,057,920
Size505.8 MB 89.7 MB
Events in quadrant A3,467,577610,314
Events in quadrant B5,193,531607,820
Events in quadrant C3,418,517580,740
Events in quadrant D3,522,022576,709

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142401
B0204701
C0140941
D0143761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67891572.312564%
B67892183.211077%
C67892022.975401%
D67901201.767305%

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 7459 6790 4 4 0.05% 0.06%
B 7459 6790 0 0 0.00% 0.00%
C 7459 6790 0 0 0.00% 0.00%
D 7460 6791 6 6 0.08% 0.09%

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 12 96 51569 287.06 876 857 176.7
A 5 203 21843 118.79 876 857 176.7
A 13 254 12090 63.58 876 857 176.7
B 6 159 1825102 11002.13 855 833 165.8
B 12 111 20813 120.5 855 833 165.8
B 11 111 19417 112.08 855 833 165.8
C 14 238 135653 691.74 830 834 194.9
C 3 233 30315 151.26 830 834 194.9
C 2 114 15428 74.88 830 834 194.9
D 8 195 192198 959.74 844 825 199.4
D 7 80 58471 289.1 844 825 199.4
D 7 238 37217 182.51 844 825 199.4

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