ASTROSAT CZTI

Data Quality Report

Orbit 09752

Creation date: 2024-06-27T15:50:13.135187
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/AS1A03_114T01_9000001390_09752cztM0_level2.evt modeM0/AS1A03_114T01_9000001390_09752cztM0_level2_quad_clean.evt
Size (bytes)417,519,36088,511,040
Size398.2 MB 84.4 MB
Events in quadrant A2,995,302559,668
Events in quadrant B3,031,585574,503
Events in quadrant C2,952,697558,968
Events in quadrant D3,220,133531,374

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01343634
B01344529
C01337930
D01442241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6540200.305810%
B6542250.382146%
C6541190.290475%
D65401011.544343%

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 7650 6555 0 0 0.00% 0.00%
B 7650 6555 0 0 0.00% 0.00%
C 7650 6556 0 0 0.00% 0.00%
D 7650 6556 85 85 1.11% 1.30%

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 15 239 14568 87.91 772 756 157.1
A 13 251 8449 48.97 772 756 157.1
A 0 226 6934 39.32 772 756 157.1
B 12 111 17569 113.93 776 758 147.6
B 11 111 14333 92.0 776 758 147.6
B 14 111 11834 75.06 776 758 147.6
C 13 61 5565 27.33 755 760 175.8
C 9 237 3875 17.72 755 760 175.8
C 8 222 3044 12.99 755 760 175.8
D 1 52 235459 1214.27 739 722 193.3
D 13 137 130709 672.41 739 722 193.3
D 2 234 19457 96.91 739 722 193.3

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