ASTROSAT CZTI

Data Quality Report

Orbit 07597

Creation date: 2024-06-27T15:21:36.711040
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/AS1G06_117T01_9000001046_07597cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07597cztM0_level2_quad_clean.evt
Size (bytes)496,422,72065,136,960
Size473.4 MB 62.1 MB
Events in quadrant A3,752,964386,741
Events in quadrant B3,192,329398,330
Events in quadrant C4,112,369383,620
Events in quadrant D3,558,429372,816

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150482
B0132111
C0162721
D0145751

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6166801.297438%
B61661121.816413%
C61661051.702887%
D61661242.011028%

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 7406 6167 1 1 0.01% 0.02%
B 7406 6166 22 22 0.30% 0.36%
C 7406 6166 29 29 0.39% 0.47%
D 7406 6167 61 61 0.82% 0.99%

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 15 239 711843 4493.28 791 778 158.3
A 0 226 7709 43.8 791 778 158.3
A 12 194 6779 37.92 791 778 158.3
B 4 81 129999 870.26 787 769 148.5
B 12 111 15399 98.52 787 769 148.5
B 11 111 12358 78.04 787 769 148.5
C 9 68 1102424 6362.84 753 758 173.1
C 1 16 38421 217.53 753 758 173.1
C 8 229 24646 137.97 753 758 173.1
D 2 152 289615 1550.27 761 738 186.3
D 5 233 288906 1546.47 761 738 186.3
D 13 104 61861 328.02 761 738 186.3

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