ASTROSAT CZTI

Data Quality Report

Orbit 04317

Creation date: 2024-06-27T14:40:18.445977
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_219T01_9000000540_04317cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04317cztM0_level2_quad_clean.evt
Size (bytes)490,841,28084,936,960
Size468.1 MB 81.0 MB
Events in quadrant A3,397,312527,813
Events in quadrant B4,209,227519,917
Events in quadrant C3,208,748519,272
Events in quadrant D3,563,322506,644

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01504
B01502
C01504
D01506

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015770491
B017928520
C015248477
D016395595

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7156841.173840%
B71621071.493996%
C7166110.153503%
D7125360.505263%

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 7715 7359 48 48 0.62% 0.65%
B 7715 7358 37 37 0.48% 0.50%
C 7715 7362 2 2 0.03% 0.03%
D 7715 7351 38 38 0.49% 0.52%

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 15 234 196876 1164.07 818 799 168.4
A 13 251 39462 229.53 818 799 168.4
A 12 194 8525 45.87 818 799 168.4
B 3 0 547192 3406.4 825 806 160.4
B 15 204 283761 1764.06 825 806 160.4
B 4 48 46101 282.39 825 806 160.4
C 9 247 69948 371.04 794 799 186.4
C 8 128 13509 68.2 794 799 186.4
C 10 65 7351 35.16 794 799 186.4
D 2 63 210457 1090.79 788 765 192.2
D 4 95 147921 765.48 788 765 192.2
D 2 136 37507 191.13 788 765 192.2

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