ASTROSAT CZTI

Data Quality Report

Orbit 05934

Creation date: 2024-06-27T15:00:58.962378
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/AS1G06_028T01_9000000768_05934cztM0_level2.evt modeM0/AS1G06_028T01_9000000768_05934cztM0_level2_quad_clean.evt
Size (bytes)486,673,92068,722,560
Size464.1 MB 65.5 MB
Events in quadrant A3,471,173411,763
Events in quadrant B3,906,806411,281
Events in quadrant C3,101,981413,860
Events in quadrant D3,810,993383,755

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145843
B0158662
C0135522
D0157592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65961342.031534%
B65961502.274106%
C6596280.424500%
D65961682.546998%

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 7876 6597 81 81 1.03% 1.23%
B 7876 6596 86 86 1.09% 1.30%
C 7876 6597 0 0 0.00% 0.00%
D 7876 6597 99 99 1.26% 1.50%

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 346319 2117.04 804 789 163.2
A 7 16 20813 122.69 804 789 163.2
A 12 194 7859 43.32 804 789 163.2
B 15 204 348606 2258.58 811 794 154.0
B 15 255 219815 1422.25 811 794 154.0
B 0 229 55923 357.99 811 794 154.0
C 13 61 6357 30.4 794 801 182.8
C 1 16 2547 9.55 794 801 182.8
C 3 202 1996 6.54 794 801 182.8
D 2 63 629071 3280.29 776 753 191.5
D 8 195 126447 656.22 776 753 191.5
D 2 152 50104 257.65 776 753 191.5

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