ASTROSAT CZTI

Data Quality Report

Orbit 25532

Creation date: 2024-06-27T19:18:42.843183
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/AS1A07_147T01_9000003722_25532cztM0_level2.evt modeM0/AS1A07_147T01_9000003722_25532cztM0_level2_quad_clean.evt
Size (bytes)489,801,60079,064,640
Size467.1 MB 75.4 MB
Events in quadrant A3,507,930498,575
Events in quadrant B3,601,994512,141
Events in quadrant C3,582,586469,031
Events in quadrant D3,697,360458,270

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142250
B0145350
C0145030
D0149910

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6542580.886579%
B6542691.054723%
C65421271.941302%
D6542480.733721%

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 9012 6544 0 0 0.00% 0.00%
B 9012 6544 2 2 0.02% 0.03%
C 9012 6544 3 3 0.03% 0.05%
D 9012 6544 8 8 0.09% 0.12%

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 13 254 9317 46.82 910 894 179.9
A 0 226 7797 38.37 910 894 179.9
A 3 137 7599 37.27 910 894 179.9
B 0 229 22633 128.15 911 893 169.6
B 12 111 20026 112.78 911 893 169.6
B 11 111 18078 101.3 911 893 169.6
C 14 238 141604 712.32 855 859 197.6
C 3 233 68625 342.97 855 859 197.6
C 2 16 39971 197.95 855 859 197.6
D 8 195 251813 1188.57 861 833 211.2
D 1 52 188269 887.64 861 833 211.2
D 2 234 23613 107.88 861 833 211.2

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