ASTROSAT CZTI

Data Quality Report

Orbit 04098

Creation date: 2024-06-27T14:37:22.822570
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/AS1SLEW_01234_9000000523_04098cztM0_level2.evt modeM0/AS1SLEW_01234_9000000523_04098cztM0_level2_quad_clean.evt
Size (bytes)27,138,2406,690,240
Size25.9 MB 6.4 MB
Events in quadrant A190,07541,659
Events in quadrant B210,09541,848
Events in quadrant C164,46941,340
Events in quadrant D225,81840,553

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08470
B08470
C08040
D09730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40200.000000%
B40200.000000%
C40200.000000%
D40200.000000%

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 402 402 0 0 0.00% 0.00%
B 402 402 1 1 0.25% 0.25%
C 402 402 0 0 0.00% 0.00%
D 402 402 2 2 0.50% 0.50%

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 0 199 13193 1199.75 42 41 11.0
A 0 50 10837 984.83 42 41 11.0
A 14 111 1697 151.06 42 41 11.0
B 3 0 33796 3252.76 43 42 10.4
B 12 18 3465 329.86 43 42 10.4
B 10 16 3092 293.92 43 42 10.4
C 13 61 385 28.79 42 42 11.9
C 9 144 330 24.17 42 42 11.9
C -1 -1 -1 -1.0 42 42 11.9
D 12 233 40547 3475.45 40 39 11.7
D 10 172 10694 914.16 40 39 11.7
D 2 14 6355 541.89 40 39 11.7

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