ASTROSAT CZTI

Data Quality Report

Orbit 07828

Creation date: 2024-06-27T15:24:31.581808
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_077T02_9000001076_07828cztM0_level2.evt modeM0/AS1G06_077T02_9000001076_07828cztM0_level2_quad_clean.evt
Size (bytes)448,989,120100,869,120
Size428.2 MB 96.2 MB
Events in quadrant A2,997,884651,578
Events in quadrant B3,353,907671,796
Events in quadrant C3,683,893661,348
Events in quadrant D3,130,827627,543

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131173
B0141992
C0151302
D0136872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6340240.378549%
B63401071.687697%
C6340851.340694%
D6341300.473111%

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 7525 6341 3 3 0.04% 0.05%
B 7525 6341 77 77 1.02% 1.21%
C 7525 6341 15 15 0.20% 0.24%
D 7526 6342 9 9 0.12% 0.14%

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 15 234 20374 126.29 771 756 155.3
A 0 226 7306 42.16 771 756 155.3
A 12 194 6669 38.06 771 756 155.3
B 4 239 194902 1324.29 782 766 146.6
B 0 219 43839 293.82 782 766 146.6
B 4 81 28235 187.38 782 766 146.6
C 1 16 692512 3918.57 762 771 176.5
C 14 234 9972 52.12 762 771 176.5
C 12 4 8876 45.91 762 771 176.5
D 5 233 114246 624.36 751 729 181.8
D 13 105 39325 212.28 751 729 181.8
D 1 52 33917 182.54 751 729 181.8

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