ASTROSAT CZTI

Data Quality Report

Orbit 45772

Creation date: 2024-06-27T23:16:00.089022
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/AS1T05_183T01_9000006124_45772cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45772cztM0_level2_quad_clean.evt
Size (bytes)573,932,16096,459,840
Size547.3 MB 92.0 MB
Events in quadrant A5,694,731657,443
Events in quadrant B7,927,087559,681
Events in quadrant C3,074,853666,061
Events in quadrant D4,066,384602,897

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0211010
B0279450
C0135960
D0163860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62211983.182768%
B6222149724.059788%
C6222410.658952%
D62221292.073288%

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 6221 6221 21 21 0.34% 0.34%
B 6222 6222 770 770 12.38% 12.38%
C 6222 6222 33 33 0.53% 0.53%
D 6222 6222 112 112 1.80% 1.80%

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 2705704 17978.76 714 699 150.5
A 13 248 171267 1133.68 714 699 150.5
A 0 243 18784 120.2 714 699 150.5
B 3 112 3824808 29133.18 664 644 131.3
B 4 171 335101 2547.95 664 644 131.3
B 5 172 212686 1615.37 664 644 131.3
C 14 254 165471 984.37 703 708 167.4
C 14 96 99231 588.62 703 708 167.4
C 1 3 53134 313.22 703 708 167.4
D 13 249 291485 1659.9 699 677 175.2
D 1 52 285853 1627.75 699 677 175.2
D 8 48 205731 1170.42 699 677 175.2

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