ASTROSAT CZTI

Data Quality Report

Orbit 03564

Creation date: 2024-06-27T14:31:01.775375
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_045T01_9000000468_03564cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03564cztM0_level2_quad_clean.evt
Size (bytes)474,606,72084,648,960
Size452.6 MB 80.7 MB
Events in quadrant A3,221,616526,091
Events in quadrant B3,686,763522,016
Events in quadrant C3,791,850505,993
Events in quadrant D3,186,246510,322

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147964
B0159023
C0165993
D0150563

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7160270.377095%
B7160821.145251%
C71602693.756983%
D7160420.586592%

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 7625 7162 2 2 0.03% 0.03%
B 7625 7161 3 3 0.04% 0.04%
C 7625 7162 220 220 2.89% 3.07%
D 7625 7162 20 20 0.26% 0.28%

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 0 118 46519 276.0 805 788 165.7
A 0 50 17099 98.44 805 788 165.7
A 0 226 12876 72.95 805 788 165.7
B 15 204 340897 2128.7 818 795 159.8
B 14 167 39684 243.41 818 795 159.8
B 4 81 34013 207.91 818 795 159.8
C 15 208 700067 3851.55 775 778 181.6
C 1 16 41078 221.96 775 778 181.6
C 12 4 9384 47.4 775 778 181.6
D 13 223 58913 307.5 783 760 189.1
D 1 20 35409 183.22 783 760 189.1
D 4 160 29260 150.7 783 760 189.1

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