ASTROSAT CZTI

Data Quality Report

Orbit 05269

Creation date: 2024-06-27T14:53:20.749060
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/AS1G05_240T02_9000000670_05269cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05269cztM0_level2_quad_clean.evt
Size (bytes)1,229,486,400183,101,760
Size1.1 GB 174.6 MB
Events in quadrant A9,591,8061,132,865
Events in quadrant B7,350,9901,167,672
Events in quadrant C7,199,3021,134,058
Events in quadrant D12,045,8901,041,158

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03140
B03140
C03140
D03140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0390

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0389774
B0321053
C0318785
D0467855

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A155103101.998711%
B15510960.618956%
C15509340.219228%
D1550914009.027017%

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 19370 15513 163 163 0.84% 1.05%
B 19370 15513 0 0 0.00% 0.00%
C 19370 15513 2 2 0.01% 0.01%
D 19370 15513 1030 1030 5.32% 6.64%

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 13 251 2533135 6903.02 1828 1786 366.7
A 0 50 20967 52.31 1828 1786 366.7
A 12 194 17979 44.16 1828 1786 366.7
B 0 219 34763 94.25 1869 1825 349.5
B 12 111 32555 87.93 1869 1825 349.5
B 15 204 31704 85.49 1869 1825 349.5
C 1 16 51143 118.05 1819 1833 417.7
C 8 222 31599 71.26 1819 1833 417.7
C 12 4 18886 40.83 1819 1833 417.7
D 11 145 4883256 11624.39 1733 1687 419.9
D 2 136 247865 586.22 1733 1687 419.9
D 10 15 109610 257.0 1733 1687 419.9

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