ASTROSAT CZTI

Data Quality Report

Orbit 47349

Creation date: 2024-06-30T14:09:58.149472
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_093T17_9000006322_47349cztM0_level2.fits modeM0/AS1A13_093T17_9000006322_47349cztM0_level2_quad_clean.evt
Size (bytes)672,960,960122,117,760
Size641.8 MB 116.5 MB
Events in quadrant A7,528,641831,922
Events in quadrant B4,264,281855,825
Events in quadrant C3,494,473819,663
Events in quadrant D9,010,944639,321

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0279280
B0182050
C0162330
D0324010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7917961.212581%
B7917720.909435%
C791770.088417%
D7917138917.544524%

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 7917 7917 12 12 0.15% 0.15%
B 7917 7917 30 30 0.38% 0.38%
C 7917 7917 1 1 0.01% 0.01%
D 7917 7917 1127 1127 14.24% 14.24%

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 10 83 3794099 20422.88 875 856 185.7
A 9 191 176100 943.52 875 856 185.7
A 15 235 162970 872.82 875 856 185.7
B 4 171 334600 1908.97 873 845 174.8
B 5 255 149271 848.95 873 845 174.8
B 0 190 122728 697.13 873 845 174.8
C 3 233 55310 264.71 865 870 205.7
C 0 207 36463 173.07 865 870 205.7
C 12 2 12020 54.22 865 870 205.7
D 6 112 3379099 16540.9 799 773 204.2
D 12 2 1992098 9749.89 799 773 204.2
D 7 38 280259 1368.41 799 773 204.2

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