ASTROSAT CZTI

Data Quality Report

Orbit 20607

Creation date: 2024-06-27T18:17:20.987552
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/AS1A06_003T04_9000003046_20607cztM0_level2.evt modeM0/AS1A06_003T04_9000003046_20607cztM0_level2_quad_clean.evt
Size (bytes)440,277,12080,501,760
Size419.9 MB 76.8 MB
Events in quadrant A2,903,352510,850
Events in quadrant B3,359,780517,905
Events in quadrant C3,117,482497,994
Events in quadrant D3,537,762483,994

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124091
B0136811
C0129181
D0144291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6115330.539657%
B6116981.602354%
C6115510.834015%
D61151201.962388%

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 7175 6116 0 0 0.00% 0.00%
B 7176 6117 35 35 0.49% 0.57%
C 7175 6116 0 0 0.00% 0.00%
D 7175 6116 84 84 1.17% 1.37%

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 8 205 10646 64.97 750 733 152.6
A 5 16 7762 46.07 750 733 152.6
A 0 226 6414 37.23 750 733 152.6
B 7 220 249625 1753.29 744 725 142.0
B 0 189 42457 293.97 744 725 142.0
B 4 216 32867 226.41 744 725 142.0
C 3 233 115251 690.2 712 717 165.9
C 8 208 113027 676.8 712 717 165.9
C 14 238 111715 668.89 712 717 165.9
D 5 222 367633 2059.47 726 704 178.2
D 1 20 123737 690.55 726 704 178.2
D 1 52 109432 610.26 726 704 178.2

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