ASTROSAT CZTI

Data Quality Report

Orbit 45573

Creation date: 2024-06-27T23:13:46.794545
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_071T04_9000006110_45573cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45573cztM0_level2_quad_clean.evt
Size (bytes)500,958,720104,912,640
Size477.8 MB 100.1 MB
Events in quadrant A5,435,456707,327
Events in quadrant B3,437,568726,275
Events in quadrant C3,478,092696,213
Events in quadrant D5,701,088604,799

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0202121
B0143671
C0147801
D0211061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63361402.209596%
B63361562.462121%
C63371362.146126%
D63375919.326180%

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 7416 6337 27 27 0.36% 0.43%
B 7416 6337 95 95 1.28% 1.50%
C 7417 6338 89 89 1.20% 1.40%
D 7417 6338 435 435 5.86% 6.86%

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 2511755 17082.34 717 701 147.0
A 10 248 81390 548.92 717 701 147.0
A 0 243 29413 195.32 717 701 147.0
B 4 171 225062 1612.74 708 688 139.1
B 10 3 187909 1345.69 708 688 139.1
B 5 172 125144 894.56 708 688 139.1
C 12 2 392138 2396.02 698 701 163.4
C 14 254 353423 2159.04 698 701 163.4
C 2 14 8163 45.68 698 701 163.4
D 1 52 1297145 7555.48 687 666 171.6
D 12 32 851521 4958.52 687 666 171.6
D 11 241 427069 2484.95 687 666 171.6

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