ASTROSAT CZTI

Data Quality Report

Orbit 14315

Creation date: 2024-06-27T16:53:24.708837
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/AS1G08_078T01_9000002110_14315cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14315cztM0_level2_quad_clean.evt
Size (bytes)480,087,36082,679,040
Size457.8 MB 78.8 MB
Events in quadrant A3,121,710532,932
Events in quadrant B3,414,766533,555
Events in quadrant C3,222,665515,793
Events in quadrant D4,374,224503,280

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125642
B0136481
C0127841
D0168431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5985440.735171%
B59851171.954887%
C5985190.317460%
D59852714.527987%

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 7301 5987 0 0 0.00% 0.00%
B 7301 5987 35 35 0.48% 0.58%
C 7301 5987 0 0 0.00% 0.00%
D 7301 5987 176 176 2.41% 2.94%

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 12 189 30585 186.85 792 777 159.5
A 4 2 19042 114.49 792 777 159.5
A 8 15 15319 91.15 792 777 159.5
B 0 229 309587 2088.09 775 758 147.9
B 0 219 30865 203.56 775 758 147.9
B 4 173 20590 134.09 775 758 147.9
C 3 233 315148 1818.32 746 750 172.9
C 13 61 5255 26.05 746 750 172.9
C 3 202 1788 6.0 746 750 172.9
D 1 52 918529 5127.96 745 729 179.0
D 12 110 316833 1766.15 745 729 179.0
D 5 222 152413 847.49 745 729 179.0

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter