ASTROSAT CZTI

Data Quality Report

Orbit 47140

Creation date: 2024-06-27T23:32:10.353947
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/AS1C09_003T01_9000006298_47140cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47140cztM0_level2_quad_clean.evt
Size (bytes)401,950,08096,635,520
Size383.3 MB 92.2 MB
Events in quadrant A5,603,965647,022
Events in quadrant B3,162,104665,110
Events in quadrant C2,458,229630,057
Events in quadrant D3,201,798576,858

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203921
B0135911
C0118901
D0140991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58271282.196671%
B58271121.922087%
C5828100.171585%
D58281111.904598%

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 7027 5828 35 35 0.50% 0.60%
B 7027 5828 44 44 0.63% 0.75%
C 7028 5829 2 2 0.03% 0.03%
D 7028 5829 87 87 1.24% 1.49%

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 3125944 24105.93 628 616 129.6
A 0 243 15286 113.15 628 616 129.6
A 9 191 10741 78.1 628 616 129.6
B 4 21 310152 2532.67 629 610 122.2
B 8 234 117355 955.2 629 610 122.2
B 0 200 66231 536.91 629 610 122.2
C 14 254 42847 293.28 613 615 144.0
C 15 208 9889 64.4 613 615 144.0
C 12 250 8393 54.01 613 615 144.0
D 1 47 476049 3140.0 607 588 151.4
D 13 171 149425 982.94 607 588 151.4
D 5 171 93870 616.05 607 588 151.4

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