ASTROSAT CZTI

Data Quality Report

Orbit 03371

Creation date: 2024-06-27T14:28:08.263651
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_112T01_9000000452_03371cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03371cztM0_level2_quad_clean.evt
Size (bytes)379,486,08085,147,200
Size361.9 MB 81.2 MB
Events in quadrant A2,752,618546,104
Events in quadrant B2,923,834555,056
Events in quadrant C2,757,681549,582
Events in quadrant D2,664,912523,523

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120252
B0124251
C0119921
D0119841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5781350.605432%
B5781500.864902%
C5781130.224875%
D5781250.432451%

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 7051 5782 12 12 0.17% 0.21%
B 7051 5782 14 14 0.20% 0.24%
C 7051 5782 0 0 0.00% 0.00%
D 7051 5782 11 11 0.16% 0.19%

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 0 118 57416 404.97 687 673 140.1
A 0 50 15498 105.81 687 673 140.1
A 0 226 12331 83.2 687 673 140.1
B 2 249 88347 644.05 704 689 136.1
B 15 204 67051 487.58 704 689 136.1
B 0 229 28301 202.87 704 689 136.1
C 15 208 32818 200.3 682 687 160.4
C 1 16 17864 107.08 682 687 160.4
C 7 237 11113 64.99 682 687 160.4
D 13 223 55174 334.36 670 653 163.1
D 5 233 23146 137.94 670 653 163.1
D 2 37 12522 72.79 670 653 163.1

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