ASTROSAT CZTI

Data Quality Report

Orbit 05006

Creation date: 2024-06-27T14:50:03.069163
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/AS1T01_132T01_9000000636_05006cztM0_level2.evt modeM0/AS1T01_132T01_9000000636_05006cztM0_level2_quad_clean.evt
Size (bytes)1,071,771,840158,572,800
Size1022.1 MB 151.2 MB
Events in quadrant A6,881,538944,373
Events in quadrant B8,375,961953,862
Events in quadrant C6,782,949955,978
Events in quadrant D9,401,504910,546

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03060
B03060
C03060
D03060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0307874
B0349663
C0306073
D0382953

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15036980.651769%
B150361571.044161%
C15036650.432296%
D150366924.602288%

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 18016 15039 14 14 0.08% 0.09%
B 18016 15039 34 34 0.19% 0.23%
C 18016 15039 1 1 0.01% 0.01%
D 18016 15039 543 543 3.01% 3.61%

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 50 68343 185.94 1761 1721 358.3
A 12 194 17925 45.23 1761 1721 358.3
A 0 226 17540 44.15 1761 1721 358.3
B 8 3 712990 2118.01 1766 1723 335.8
B 15 204 384978 1141.26 1766 1723 335.8
B 0 219 250265 740.11 1766 1723 335.8
C 1 16 22131 51.18 1730 1740 398.4
C 13 61 13914 30.55 1730 1740 398.4
C 14 67 8493 16.95 1730 1740 398.4
D 2 33 1313519 3166.8 1707 1660 414.3
D 13 235 593481 1428.64 1707 1660 414.3
D 2 136 312506 750.38 1707 1660 414.3

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