ASTROSAT CZTI

Data Quality Report

Orbit 35013

Creation date: 2022-06-11T12:03:44.653642
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/AS1T05_010T01_9000005016_35013cztM0_level2.evt modeM0/AS1T05_010T01_9000005016_35013cztM0_level2_quad_clean.evt
Size (bytes)481,291,20053,902,080
Size459.0 MB 51.4 MB
Events in quadrant A2,931,998321,305
Events in quadrant B3,290,562322,638
Events in quadrant C3,051,036313,925
Events in quadrant D4,927,920287,412

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121753
B0131552
C0122412
D0184462

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5524370.669804%
B55241723.113686%
C5524741.339609%
D55242955.340333%

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 7317 5525 33 33 0.45% 0.60%
B 7317 5525 113 113 1.54% 2.05%
C 7317 5525 39 39 0.53% 0.71%
D 7317 5525 252 252 3.44% 4.56%

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 7 32 161107 1163.61 687 675 137.9
A 10 83 77790 559.31 687 675 137.9
A 15 223 26919 190.35 687 675 137.9
B 0 190 233481 1842.49 672 657 126.4
B 5 172 206554 1629.4 672 657 126.4
B 4 232 120260 946.5 672 657 126.4
C 15 214 232425 1541.1 657 663 150.4
C 0 10 189652 1256.68 657 663 150.4
C 15 159 37596 245.59 657 663 150.4
D 8 195 1278403 8049.18 651 634 158.7
D 1 47 354136 2226.85 651 634 158.7
D 13 249 284527 1788.36 651 634 158.7

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