ASTROSAT CZTI

Data Quality Report

Orbit 47344

Creation date: 2024-06-30T05:13:38.695634
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_093T09_9000006320_47344cztM0_level2.fits modeM0/AS1A13_093T09_9000006320_47344cztM0_level2_quad_clean.evt
Size (bytes)626,788,80097,441,920
Size597.8 MB 92.9 MB
Events in quadrant A7,238,196680,196
Events in quadrant B3,210,431737,731
Events in quadrant C2,937,906706,420
Events in quadrant D9,328,433387,729

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257652
B0139062
C0130942
D0320572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62803695.875796%
B6279590.939640%
C6279130.207039%
D6279253840.420449%

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 7495 6281 340 340 4.54% 5.41%
B 7494 6280 10 10 0.13% 0.16%
C 7494 6280 1 1 0.01% 0.02%
D 7493 6279 2162 2162 28.85% 34.43%

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 3640605 25010.5 699 686 145.5
A 15 235 582511 3997.82 699 686 145.5
A 9 191 286258 1962.21 699 686 145.5
B 0 190 87509 625.98 714 693 138.7
B 4 171 59632 424.97 714 693 138.7
B 0 198 56569 402.89 714 693 138.7
C 0 207 107965 651.36 702 706 164.7
C 3 233 82699 497.92 702 706 164.7
C 12 2 7168 39.24 702 706 164.7
D 12 2 3048959 22661.23 536 519 134.5
D 2 165 2851086 21190.3 536 519 134.5
D 6 112 941490 6994.91 536 519 134.5

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