ASTROSAT CZTI

Data Quality Report

Orbit 03405

Creation date: 2024-06-27T14:28:34.688372
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_210T01_9000000454_03405cztM0_level2.evt modeM0/AS1G05_210T01_9000000454_03405cztM0_level2_quad_clean.evt
Size (bytes)596,669,76091,212,480
Size569.0 MB 87.0 MB
Events in quadrant A3,845,679552,303
Events in quadrant B5,362,695547,201
Events in quadrant C4,481,638547,345
Events in quadrant D3,813,514534,675

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174623
B0215422
C0191992
D0176882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83631822.176253%
B83632583.085017%
C83632523.013273%
D8363660.789190%

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 9238 8367 7 7 0.08% 0.08%
B 9238 8367 5 5 0.05% 0.06%
C 9238 8367 103 103 1.11% 1.23%
D 9238 8367 10 10 0.11% 0.12%

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 43070 208.56 983 958 201.9
A 0 226 14401 66.58 983 958 201.9
A 12 194 10235 45.94 983 958 201.9
B 15 204 1393650 7152.11 997 970 194.7
B 14 167 93229 473.8 997 970 194.7
B 12 111 15136 72.75 997 970 194.7
C 7 220 389995 1737.39 955 959 223.9
C 1 16 308853 1375.02 955 959 223.9
C 14 67 13679 56.81 955 959 223.9
D 2 37 75912 318.03 958 927 235.8
D 9 85 37334 154.41 958 927 235.8
D 12 246 23799 97.0 958 927 235.8

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