ASTROSAT CZTI

Data Quality Report

Orbit 13299

Creation date: 2024-06-27T16:38:57.858098
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/AS1G08_023T01_9000001978_13299cztM0_level2.evt modeM0/AS1G08_023T01_9000001978_13299cztM0_level2_quad_clean.evt
Size (bytes)501,822,72090,786,240
Size478.6 MB 86.6 MB
Events in quadrant A4,310,413577,856
Events in quadrant B3,396,490592,536
Events in quadrant C3,462,803575,036
Events in quadrant D3,582,783546,466

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173543
B0144452
C0149072
D0151582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65574536.908647%
B6557560.854049%
C6557731.113314%
D6557761.159067%

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 7748 6559 292 292 3.77% 4.45%
B 7748 6559 8 8 0.10% 0.12%
C 7748 6559 28 28 0.36% 0.43%
D 7748 6559 52 52 0.67% 0.79%

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 9 143 877136 5449.33 799 781 160.8
A 8 15 326853 2027.57 799 781 160.8
A 1 162 19494 116.36 799 781 160.8
B 4 142 57282 361.23 834 815 156.3
B 3 64 32936 205.49 834 815 156.3
B 12 111 17342 105.73 834 815 156.3
C 6 96 329677 1809.72 795 800 181.7
C 15 208 16560 86.72 795 800 181.7
C 3 233 9496 47.85 795 800 181.7
D 12 222 301452 1579.07 792 771 190.4
D 1 52 102476 534.12 792 771 190.4
D 13 249 76588 398.16 792 771 190.4

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