ASTROSAT CZTI

Data Quality Report

Orbit 20230215_A12_032T02_9000005510_level2

Creation date: 2023-02-22T13:55:55.990841
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/AS1A12_032T02_9000005510cztM0_level2.fits modeM0/AS1A12_032T02_9000005510cztM0_level2_quad_clean.evt
Size (bytes)30,070,08043,306,560
Size28.7 MB 41.3 MB
Events in quadrant A179,940280,987
Events in quadrant B169,610278,372
Events in quadrant C168,154268,161
Events in quadrant D151,365241,882

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0820
C0780
D0750

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072950
B074610
C080790
D076560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A341030.087977%
B3378682.013025%
C33462106.276151%
D3358300.893389%

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 5816 3468 0 0 0.00% 0.00%
B 5816 3435 0 0 0.00% 0.00%
C 5816 3383 0 0 0.00% 0.00%
D 5816 3414 0 0 0.00% 0.00%

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 0 29 170 9.19 46 44 13.7
A 7 110 165 8.83 46 44 13.7
A 0 30 150 7.73 46 44 13.7
B 2 9 160 10.39 45 43 11.3
B 3 80 134 8.08 45 43 11.3
B 5 128 132 7.9 45 43 11.3
C 1 80 167 9.39 44 41 13.4
C 1 81 166 9.31 44 41 13.4
C 3 158 131 6.7 44 41 13.4
D 7 3 126 6.6 43 39 13.2
D 10 189 121 6.22 43 39 13.2
D 6 67 120 6.15 43 39 13.2

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