ASTROSAT CZTI

Data Quality Report

Orbit 46097

Creation date: 2024-06-27T23:19:12.509753
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/AS1C07_001T10_9000006170_46097cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46097cztM0_level2_quad_clean.evt
Size (bytes)399,706,56075,798,720
Size381.2 MB 72.3 MB
Events in quadrant A4,001,006509,357
Events in quadrant B2,184,410548,154
Events in quadrant C2,701,818522,221
Events in quadrant D5,558,777399,184

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148941
B096341
C0112423
D0196451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44991894.200934%
B4499801.778173%
C44982265.024455%
D449890320.075589%

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 5734 4500 25 25 0.44% 0.56%
B 5734 4500 4 4 0.07% 0.09%
C 5733 4499 139 139 2.42% 3.09%
D 5733 4499 755 755 13.17% 16.78%

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 1990508 18864.72 504 492 105.5
A 9 191 50848 477.36 504 492 105.5
A 13 254 7091 62.56 504 492 105.5
B 0 190 74966 753.99 514 501 98.8
B 5 172 36922 368.78 514 501 98.8
B 0 245 18650 183.77 514 501 98.8
C 14 254 724113 6250.29 501 504 115.8
C 3 233 18449 155.0 501 504 115.8
C 13 61 3404 25.05 501 504 115.8
D 2 37 1890279 16713.02 454 440 113.1
D 1 52 1330438 11762.0 454 440 113.1
D 5 235 283640 2504.51 454 440 113.1

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