ASTROSAT CZTI

Data Quality Report

Orbit 08059

Creation date: 2024-06-27T15:27:24.490862
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/AS1A02_055T01_9000001114_08059cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08059cztM0_level2_quad_clean.evt
Size (bytes)1,293,739,200181,699,200
Size1.2 GB 173.3 MB
Events in quadrant A8,617,7521,103,817
Events in quadrant B9,312,8341,130,086
Events in quadrant C7,673,3721,143,253
Events in quadrant D12,437,405962,342

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370004
B0386163
C0343673
D0485323

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03440
B03440
C03440
D03440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A168563241.922164%
B168563832.272188%
C168561330.789037%
D16856190111.277883%

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 19816 16859 130 130 0.66% 0.77%
B 19816 16859 138 138 0.70% 0.82%
C 19816 16859 0 0 0.00% 0.00%
D 19816 16859 1520 1520 7.67% 9.02%

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 4 2 918785 2272.33 1995 1953 403.5
A 0 226 18721 41.56 1995 1953 403.5
A 12 194 18117 40.06 1995 1953 403.5
B 4 239 736190 1951.27 2004 1959 376.3
B 11 51 171738 451.2 2004 1959 376.3
B 0 213 157466 413.27 2004 1959 376.3
C 1 16 51664 110.66 1953 1961 449.2
C 13 61 15260 29.61 1953 1961 449.2
C 8 222 6332 9.73 1953 1961 449.2
D 4 95 4242861 8725.49 1809 1770 486.1
D 1 52 408635 837.07 1809 1770 486.1
D 13 105 336491 688.64 1809 1770 486.1

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