ASTROSAT CZTI

Data Quality Report

Orbit 16763

Creation date: 2024-06-27T17:27:19.836298
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/AS1A05_004T05_9000002488_16763cztM0_level2.evt modeM0/AS1A05_004T05_9000002488_16763cztM0_level2_quad_clean.evt
Size (bytes)645,952,320106,096,320
Size616.0 MB 101.2 MB
Events in quadrant A3,252,697726,423
Events in quadrant B3,527,614722,544
Events in quadrant C4,128,158692,539
Events in quadrant D8,216,909620,143

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137112
B0145471
C0166391
D0289351

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64651021.577726%
B64651051.624130%
C64651652.552204%
D6465142522.041763%

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 7581 6467 6 6 0.08% 0.09%
B 7581 6467 9 9 0.12% 0.14%
C 7581 6467 3 3 0.04% 0.05%
D 7581 6467 1047 1047 13.81% 16.19%

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 15 174 53115 314.32 829 812 166.4
A 3 1 11833 66.23 829 812 166.4
A 0 226 7329 39.16 829 812 166.4
B 3 209 115301 739.08 818 801 154.9
B 15 35 98554 630.98 818 801 154.9
B 5 236 29974 188.31 818 801 154.9
C 3 233 787967 4283.73 792 798 183.8
C 14 238 125049 676.17 792 798 183.8
C 0 207 122997 665.0 792 798 183.8
D 1 52 4093210 22365.63 755 734 183.0
D 13 232 1000365 5463.04 755 734 183.0
D 11 176 83670 453.25 755 734 183.0

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