ASTROSAT CZTI

Data Quality Report

Orbit 47214

Creation date: 2024-06-27T23:32:56.823686
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/AS1A13_019T01_9000006302_47214cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47214cztM0_level2_quad_clean.evt
Size (bytes)566,838,720110,041,920
Size540.6 MB 104.9 MB
Events in quadrant A7,174,039731,220
Events in quadrant B3,303,475791,473
Events in quadrant C3,088,934749,429
Events in quadrant D6,921,721614,512

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262551
B0137011
C0134301
D0249705

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63833705.796647%
B63841221.911028%
C6384390.610902%
D638385613.410622%

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 7623 6383 177 177 2.32% 2.77%
B 7624 6384 11 11 0.14% 0.17%
C 7624 6385 12 12 0.16% 0.19%
D 7623 6383 930 930 12.20% 14.57%

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 3575496 22661.05 763 749 157.7
A 9 191 553964 3506.94 763 749 157.7
A 15 235 78543 493.15 763 749 157.7
B 5 32 98419 642.36 777 754 152.0
B 0 190 87977 573.68 777 754 152.0
B 0 200 32005 205.54 777 754 152.0
C 14 254 108796 609.41 755 759 177.3
C 9 237 19122 103.58 755 759 177.3
C 15 208 11258 59.22 755 759 177.3
D 6 112 3956322 22035.01 724 703 179.5
D 7 55 56593 311.34 724 703 179.5
D 12 218 51939 285.41 724 703 179.5

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