ASTROSAT CZTI

Data Quality Report

Orbit 03790

Creation date: 2024-06-27T14:33:42.216417
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_152T03_9000000488_03790cztM0_level2.evt modeM0/AS1G05_152T03_9000000488_03790cztM0_level2_quad_clean.evt
Size (bytes)452,289,60058,124,160
Size431.3 MB 55.4 MB
Events in quadrant A3,764,794331,752
Events in quadrant B3,453,531335,267
Events in quadrant C2,987,610329,098
Events in quadrant D3,057,425317,550

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151113
B0143392
C0132102
D0136282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6391931.455171%
B6391741.157878%
C6391370.578939%
D6391530.829291%

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 7616 6391 43 43 0.56% 0.67%
B 7616 6391 19 19 0.25% 0.30%
C 7616 6392 10 10 0.13% 0.16%
D 7616 6391 29 29 0.38% 0.45%

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 13 251 429755 2738.44 768 752 156.7
A 0 118 169631 1078.0 768 752 156.7
A 15 174 106595 675.62 768 752 156.7
B 15 204 236052 1579.61 784 765 149.0
B 0 173 44203 291.62 784 765 149.0
B 5 200 39273 258.53 784 765 149.0
C 1 16 58073 331.52 744 748 172.9
C 12 4 11399 61.6 744 748 172.9
C 10 65 6555 33.58 744 748 172.9
D 13 223 66702 372.82 738 717 177.0
D 8 112 43184 239.94 738 717 177.0
D 13 239 35022 193.83 738 717 177.0

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