ASTROSAT CZTI

Data Quality Report

Orbit 47394

Creation date: 2024-07-03T14:14:39.034679
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/AS1A13_093T25_9000006324_47394cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47394cztM0_level2_quad_clean.evt
Size (bytes)636,958,080133,251,840
Size607.5 MB 127.1 MB
Events in quadrant A8,232,960876,218
Events in quadrant B5,022,211889,935
Events in quadrant C4,557,206880,810
Events in quadrant D5,104,151795,025

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0305033
B0207300
C0194790
D0212780

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85344695.495664%
B85356417.510252%
C85352392.800234%
D85354254.979496%

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 8534 8534 6 6 0.07% 0.07%
B 8535 8535 254 254 2.98% 2.98%
C 8535 8535 98 98 1.15% 1.15%
D 8535 8535 238 238 2.79% 2.79%

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 10 83 4179765 19625.86 1008 984 212.9
A 9 191 128985 601.16 1008 984 212.9
A 3 137 12766 55.33 1008 984 212.9
B 5 32 755843 3794.35 994 960 198.9
B 5 172 148977 743.99 994 960 198.9
B 4 171 39363 193.03 994 960 198.9
C 0 207 462862 1949.36 997 1001 236.9
C 3 233 105894 442.72 997 1001 236.9
C 12 2 54981 227.83 997 1001 236.9
D 12 2 593986 2377.11 986 955 249.5
D 2 249 408862 1635.05 986 955 249.5
D 7 38 161015 641.58 986 955 249.5

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