ASTROSAT CZTI

Data Quality Report

Orbit 13216

Creation date: 2024-06-27T16:37:58.554048
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/AS1A04_216T01_9000001968_13216cztM0_level2.evt modeM0/AS1A04_216T01_9000001968_13216cztM0_level2_quad_clean.evt
Size (bytes)485,867,520106,079,040
Size463.4 MB 101.2 MB
Events in quadrant A3,236,811699,010
Events in quadrant B4,171,018695,349
Events in quadrant C3,081,555706,718
Events in quadrant D3,776,689651,125

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139493
B0167432
C0136052
D0158442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6602320.484702%
B66024376.619206%
C6602260.393820%
D66021552.347773%

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 7828 6604 7 7 0.09% 0.11%
B 7828 6604 230 230 2.94% 3.48%
C 7828 6604 4 4 0.05% 0.06%
D 7828 6604 62 62 0.79% 0.94%

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 8 15 74791 464.01 786 771 159.5
A 1 162 40639 249.92 786 771 159.5
A 15 69 31130 190.31 786 771 159.5
B 4 239 999042 6917.26 778 759 144.3
B 3 64 41618 283.12 778 759 144.3
B 4 173 25961 174.63 778 759 144.3
C 15 208 32564 178.68 779 782 177.9
C 13 61 5883 28.68 779 782 177.9
C 14 234 5216 24.93 779 782 177.9
D 8 195 314245 1741.2 754 733 180.1
D 1 52 304636 1687.83 754 733 180.1
D 13 122 223223 1235.68 754 733 180.1

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