ASTROSAT CZTI

Data Quality Report

Orbit 03416

Creation date: 2024-06-27T14:29:18.761628
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/AS1SLEW_01234_9000000455_03416cztM0_level2.evt modeM0/AS1SLEW_01234_9000000455_03416cztM0_level2_quad_clean.evt
Size (bytes)71,219,52017,239,680
Size67.9 MB 16.4 MB
Events in quadrant A462,846111,885
Events in quadrant B606,868113,264
Events in quadrant C529,474112,607
Events in quadrant D486,566106,765

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020250
B024470
C021820
D020970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A99800.000000%
B99870.701403%
C998111.102204%
D99860.601202%

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 998 998 0 0 0.00% 0.00%
B 998 998 1 1 0.10% 0.10%
C 998 998 6 6 0.60% 0.60%
D 998 998 7 7 0.70% 0.70%

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 31 5463 203.56 118 115 26.3
A 0 226 1270 43.96 118 115 26.3
A 12 194 1243 42.93 118 115 26.3
B 15 204 68201 2755.54 121 119 24.7
B 14 167 23032 927.38 121 119 24.7
B 5 70 20531 826.15 121 119 24.7
C 7 220 58492 2009.56 119 119 29.0
C 15 208 2400 78.53 119 119 29.0
C 8 208 1976 63.93 119 119 29.0
D 13 223 27176 908.56 117 113 29.8
D 12 246 6274 206.84 117 113 29.8
D 2 37 5334 175.28 117 113 29.8

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