ASTROSAT CZTI

Data Quality Report

Orbit 05893

Creation date: 2024-06-27T15:00:33.060897
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/AS1A02_114T01_9000000764_05893cztM0_level2.evt modeM0/AS1A02_114T01_9000000764_05893cztM0_level2_quad_clean.evt
Size (bytes)474,240,96082,382,400
Size452.3 MB 78.6 MB
Events in quadrant A3,422,043499,315
Events in quadrant B3,507,622502,964
Events in quadrant C3,366,747498,945
Events in quadrant D3,567,634482,901

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151913
B0152849
C0151944
D0158012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73231522.075652%
B73191882.568657%
C73221622.212510%
D73231612.198553%

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 9323 7325 0 0 0.00% 0.00%
B 9323 7324 0 0 0.00% 0.00%
C 9323 7325 1 1 0.01% 0.01%
D 9323 7325 16 16 0.17% 0.22%

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 15 236 70113 389.39 867 846 177.9
A 7 16 14188 75.0 867 846 177.9
A 0 226 8203 41.36 867 846 177.9
B 15 204 90765 533.4 878 855 168.6
B 12 111 16332 91.82 878 855 168.6
B 11 111 12855 71.19 878 855 168.6
C 9 247 17804 85.14 856 858 199.0
C 13 61 6777 29.74 856 858 199.0
C 9 16 5517 23.41 856 858 199.0
D 2 152 224409 1080.76 851 826 206.9
D 2 136 46826 222.36 851 826 206.9
D 1 239 39119 185.1 851 826 206.9

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