ASTROSAT CZTI

Data Quality Report

Orbit 09381

Creation date: 2024-06-27T15:45:19.184866
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/AS1A03_057T01_9000001330_09381cztM0_level2.evt modeM0/AS1A03_057T01_9000001330_09381cztM0_level2_quad_clean.evt
Size (bytes)468,653,76093,735,360
Size446.9 MB 89.4 MB
Events in quadrant A3,931,668603,702
Events in quadrant B3,151,593613,975
Events in quadrant C2,837,037596,096
Events in quadrant D3,832,242572,257

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160273
B0137932
C0131772
D0160222

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6487530.817019%
B6487320.493294%
C648790.138739%
D6487771.186989%

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 7557 6488 8 8 0.11% 0.12%
B 7557 6488 5 5 0.07% 0.08%
C 7557 6488 0 0 0.00% 0.00%
D 7557 6488 46 46 0.61% 0.71%

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 8 5 801668 5275.31 746 729 151.8
A 1 162 93357 610.09 746 729 151.8
A 1 178 35327 227.88 746 729 151.8
B 0 214 79343 549.21 758 740 143.1
B 8 234 43404 298.1 758 740 143.1
B 0 219 38658 264.94 758 740 143.1
C 5 128 7587 41.06 723 723 167.2
C 14 234 6225 32.91 723 723 167.2
C 13 61 5519 28.69 723 723 167.2
D 1 52 863225 4581.49 708 689 188.3
D 8 195 125020 660.4 708 689 188.3
D 13 137 38787 202.36 708 689 188.3

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