ASTROSAT CZTI

Data Quality Report

Orbit 44718

Creation date: 2024-06-27T23:05:35.871670
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_077T01_9000006014_44718cztM0_level2.fits modeM0/AS1A13_077T01_9000006014_44718cztM0_level2_quad_clean.evt
Size (bytes)211,872,96032,486,400
Size202.1 MB 31.0 MB
Events in quadrant A1,664,563238,072
Events in quadrant B1,429,849234,606
Events in quadrant C919,207230,181
Events in quadrant D3,663,163128,195

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066290
B056990
C042480
D0123430

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2108231.091082%
B2109904.267425%
C210900.000000%
D210989342.342342%

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 2108 2108 11 11 0.52% 0.52%
B 2109 2109 48 48 2.28% 2.28%
C 2109 2109 0 0 0.00% 0.00%
D 2109 2109 870 870 41.25% 41.25%

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 610552 12181.69 233 229 50.1
A 15 223 142538 2840.41 233 229 50.1
A 0 243 3170 58.7 233 229 50.1
B 4 171 331315 6928.4 234 227 47.8
B 0 189 76998 1606.52 234 227 47.8
B 0 186 31926 663.34 234 227 47.8
C 0 207 5040 85.13 232 233 56.5
C 3 233 3865 64.32 232 233 56.5
C 12 2 2947 48.06 232 233 56.5
D 11 241 2181424 44865.15 185 180 48.6
D 1 52 288746 5935.4 185 180 48.6
D 5 222 135135 2775.84 185 180 48.6

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