ASTROSAT CZTI

Data Quality Report

Orbit 29562

Creation date: 2024-06-27T20:05:31.050176
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/AS1C05_019T01_9000004264_29562cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29562cztM0_level2_quad_clean.evt
Size (bytes)1,289,001,600270,619,200
Size1.2 GB 258.1 MB
Events in quadrant A7,967,3961,797,912
Events in quadrant B8,207,8631,846,266
Events in quadrant C8,735,2521,688,468
Events in quadrant D12,962,1501,675,933

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03480
B03480
C03480
D03480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0352773
B0357293
C0372933
D0502733

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A172283051.770374%
B172283572.072208%
C1722816329.472951%
D1722811926.918969%

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 18978 17232 1 1 0.01% 0.01%
B 18978 17232 15 15 0.08% 0.09%
C 18978 17232 0 0 0.00% 0.00%
D 18978 17232 781 781 4.12% 4.53%

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 13 254 32929 75.04 2062 2018 411.9
A 3 137 20317 44.42 2062 2018 411.9
A 0 226 17519 37.63 2062 2018 411.9
B 0 190 67671 171.32 2051 2004 383.3
B 0 156 53655 134.75 2051 2004 383.3
B 12 111 48206 120.54 2051 2004 383.3
C 14 238 715088 1635.62 1896 1904 436.0
C 14 254 559028 1277.71 1896 1904 436.0
C 2 114 38515 83.96 1896 1904 436.0
D 7 238 1941466 4256.34 1932 1878 455.7
D 8 195 1202963 2635.73 1932 1878 455.7
D 13 172 937685 2053.59 1932 1878 455.7

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