ASTROSAT CZTI

Data Quality Report

Orbit 01095

Creation date: 2024-06-27T14:07:24.183380
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/AS1P01_997T02_9000000212_01095cztM0_level2.evt modeM0/AS1P01_997T02_9000000212_01095cztM0_level2_quad_clean.evt
Size (bytes)953,605,44094,927,680
Size909.4 MB 90.5 MB
Events in quadrant A7,149,924626,643
Events in quadrant B7,524,189614,693
Events in quadrant C7,214,180600,395
Events in quadrant D6,584,703605,275

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255762
B0267141
C0257781
D0239231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6129180.293686%
B6129200.326318%
C612980.130527%
D6129170.277370%

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 7124 6130 126 126 1.77% 2.06%
B 7124 6129 196 196 2.75% 3.20%
C 7124 6129 156 156 2.19% 2.55%
D 7124 6130 128 128 1.80% 2.09%

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 4 32 51032 111.36 1837 1850 441.6
A 15 233 44649 96.91 1837 1850 441.6
A 11 79 7747 13.35 1837 1850 441.6
B 5 191 167055 364.59 1916 1923 452.9
B 15 255 23671 48.02 1916 1923 452.9
B 5 249 18297 36.15 1916 1923 452.9
C 15 241 289953 605.29 1719 1777 476.1
C 10 207 163256 339.17 1719 1777 476.1
C 3 111 20494 39.31 1719 1777 476.1
D 2 216 187554 378.24 1679 1715 491.3
D 12 22 37015 71.85 1679 1715 491.3
D 10 125 30788 59.17 1679 1715 491.3

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