ASTROSAT CZTI

Data Quality Report

Orbit 03505

Creation date: 2024-06-27T14:30:16.632794
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/AS1G05_192T01_9000000466_03505cztM0_level2.evt modeM0/AS1G05_192T01_9000000466_03505cztM0_level2_quad_clean.evt
Size (bytes)430,041,60087,281,280
Size410.1 MB 83.2 MB
Events in quadrant A3,401,836549,192
Events in quadrant B3,221,850551,522
Events in quadrant C3,079,152552,653
Events in quadrant D2,877,036534,616

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145492
B0140831
C0137901
D0135721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6522671.027292%
B6522480.735971%
C6522490.751303%
D6522400.613309%

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 7382 6523 18 18 0.24% 0.28%
B 7382 6523 2 2 0.03% 0.03%
C 7382 6523 9 9 0.12% 0.14%
D 7382 6523 22 22 0.30% 0.34%

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 0 50 305378 2029.03 740 725 150.1
A 14 238 169245 1122.37 740 725 150.1
A 8 15 34656 225.99 740 725 150.1
B 15 204 254610 1733.02 756 738 146.5
B 0 229 11976 76.71 756 738 146.5
B 4 200 11102 70.75 756 738 146.5
C 1 192 158521 931.31 730 734 169.4
C 15 208 48250 280.45 730 734 169.4
C 1 16 16888 95.35 730 734 169.4
D 13 223 68456 387.33 723 701 174.9
D 13 239 37040 207.74 723 701 174.9
D 5 233 23931 132.8 723 701 174.9

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
Veto Counter