ASTROSAT CZTI

Data Quality Report

Orbit 09731

Creation date: 2024-06-27T15:49:59.445138
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/AS1A03_119T01_9000001388_09731cztM0_level2.evt modeM0/AS1A03_119T01_9000001388_09731cztM0_level2_quad_clean.evt
Size (bytes)217,494,72023,143,680
Size207.4 MB 22.1 MB
Events in quadrant A1,557,343120,615
Events in quadrant B1,569,272123,590
Events in quadrant C1,525,190118,577
Events in quadrant D1,720,782115,114

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066216
B066185
C065965
D071747

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31211264.037168%
B31211715.479013%
C31211364.357578%
D31211384.421660%

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 3248 3124 0 0 0.00% 0.00%
B 3248 3124 0 0 0.00% 0.00%
C 3248 3124 0 0 0.00% 0.00%
D 3248 3124 6 6 0.18% 0.19%

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 0 226 3597 38.03 404 395 84.2
A 12 194 3178 33.05 404 395 84.2
A 13 251 2482 24.78 404 395 84.2
B 12 111 9461 113.45 403 392 79.9
B 11 111 7704 91.47 403 392 79.9
B 14 111 5901 68.92 403 392 79.9
C 8 128 4923 49.62 387 387 91.4
C 10 22 4156 41.23 387 387 91.4
C 13 61 2912 27.62 387 387 91.4
D 1 52 253154 2677.63 386 376 94.4
D 2 234 13200 135.84 386 376 94.4
D 14 226 3777 36.03 386 376 94.4

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