ASTROSAT CZTI

Data Quality Report

Orbit 17313

Creation date: 2024-06-27T17:34:52.377529
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/AS1A05_010T02_9000002556_17313cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17313cztM0_level2_quad_clean.evt
Size (bytes)525,271,68093,625,920
Size500.9 MB 89.3 MB
Events in quadrant A3,142,050619,072
Events in quadrant B3,222,511623,253
Events in quadrant C3,122,582578,955
Events in quadrant D5,968,776549,428

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138342
B0139192
C0137742
D0223942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6666340.510051%
B6666410.615062%
C6666370.555056%
D66666349.510951%

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 7786 6667 0 0 0.00% 0.00%
B 7786 6667 1 1 0.01% 0.01%
C 7786 6667 0 0 0.00% 0.00%
D 7786 6667 712 712 9.14% 10.68%

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 0 226 7393 40.26 816 800 163.8
A 3 137 6178 32.84 816 800 163.8
A 12 194 5864 30.92 816 800 163.8
B 12 111 18663 114.0 816 795 156.7
B 0 229 17649 107.53 816 795 156.7
B 11 111 15968 96.8 816 795 156.7
C 14 238 120130 662.84 769 774 180.1
C 13 61 5265 24.94 769 774 180.1
C 3 233 4061 18.25 769 774 180.1
D 11 176 1759762 9570.13 759 738 183.8
D 5 222 1213074 6595.82 759 738 183.8
D 1 52 79257 427.19 759 738 183.8

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