ASTROSAT CZTI

Data Quality Report

Orbit 11710

Creation date: 2024-06-27T16:17:13.048720
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/AS1A04_227T01_9000001724_11710cztM0_level2.evt modeM0/AS1A04_227T01_9000001724_11710cztM0_level2_quad_clean.evt
Size (bytes)577,563,84061,862,400
Size550.8 MB 59.0 MB
Events in quadrant A4,663,882362,077
Events in quadrant B4,189,096373,565
Events in quadrant C3,146,894375,424
Events in quadrant D5,063,291319,979

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180522
B0163382
C0132032
D0192412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63112353.723657%
B63272764.362257%
C6327370.584795%
D63275158.139719%

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 7627 6313 98 98 1.28% 1.55%
B 7643 6329 120 120 1.57% 1.90%
C 7643 6329 0 0 0.00% 0.00%
D 7643 6329 434 434 5.68% 6.86%

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 8 5 807146 4844.75 823 809 166.4
A 8 15 431068 2585.14 823 809 166.4
A 1 162 81401 484.22 823 809 166.4
B 3 64 518661 3297.71 830 813 157.0
B 4 239 308868 1961.73 830 813 157.0
B 15 204 39012 243.26 830 813 157.0
C 13 61 5862 27.13 806 813 186.1
C 8 222 3512 14.51 806 813 186.1
C 3 202 1986 6.3 806 813 186.1
D 7 80 1263866 6919.32 762 741 182.6
D 8 195 312148 1705.87 762 741 182.6
D 1 52 301565 1647.89 762 741 182.6

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