ASTROSAT CZTI

Data Quality Report

Orbit 47332

Creation date: 2024-06-29T10:05:39.927729
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/AS1A13_037T01_9000006318_47332cztM0_level2.fits modeM0/AS1A13_037T01_9000006318_47332cztM0_level2_quad_clean.evt
Size (bytes)651,545,280101,125,440
Size621.4 MB 96.4 MB
Events in quadrant A11,679,624488,776
Events in quadrant B3,105,068758,944
Events in quadrant C2,904,368711,991
Events in quadrant D5,911,932636,675

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0394442
B0139472
C0137142
D0221932

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6674264339.601438%
B6674590.884028%
C6674170.254720%
D66742663.985616%

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 7619 6675 2357 2357 30.94% 35.31%
B 7619 6675 2 2 0.03% 0.03%
C 7619 6675 0 0 0.00% 0.00%
D 7619 6675 198 198 2.60% 2.97%

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 15 235 5095848 35791.53 684 670 142.4
A 10 83 3432157 24104.79 684 670 142.4
A 9 191 490596 3441.53 684 670 142.4
B 4 171 63880 422.67 748 726 149.4
B 0 198 22012 142.46 748 726 149.4
B 12 111 19283 124.2 748 726 149.4
C 3 233 39401 222.47 731 734 173.8
C 1 3 9082 48.03 731 734 173.8
C 12 249 6258 31.78 731 734 173.8
D 6 112 1847489 10324.99 713 691 178.9
D 10 204 565066 3155.28 713 691 178.9
D 2 249 413346 2307.05 713 691 178.9

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