ASTROSAT CZTI

Data Quality Report

Orbit 03027

Creation date: 2024-06-27T14:23:37.910253
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_238T02_9000000420_03027cztM0_level2.evt modeM0/AS1G05_238T02_9000000420_03027cztM0_level2_quad_clean.evt
Size (bytes)88,338,24021,340,800
Size84.2 MB 20.4 MB
Events in quadrant A628,010138,410
Events in quadrant B691,442140,360
Events in quadrant C618,348135,486
Events in quadrant D644,359132,288

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026711
B028561
C026951
D027831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132730.226074%
B132740.301432%
C132730.226074%
D132730.226074%

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 3482 1328 0 0 0.00% 0.00%
B 3482 1328 2 2 0.06% 0.15%
C 3482 1328 1 1 0.03% 0.08%
D 3482 1328 1 1 0.03% 0.08%

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 13 14 6969 199.61 158 155 34.1
A 13 251 3775 106.04 158 155 34.1
A 0 50 3252 90.72 158 155 34.1
B 14 167 58854 1782.39 159 155 32.9
B 0 219 8468 252.42 159 155 32.9
B 2 249 8220 244.89 159 155 32.9
C 5 190 6161 159.73 153 153 37.6
C 14 234 4162 106.59 153 153 37.6
C 1 16 3614 92.02 153 153 37.6
D 2 152 20134 519.76 153 149 38.5
D 12 1 19246 496.67 153 149 38.5
D 13 114 11843 304.13 153 149 38.5

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
Veto Counter