ASTROSAT CZTI

Data Quality Report

Orbit 30067

Creation date: 2024-06-27T20:10:32.222796
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/AS1A10_071T07_9000004322_30067cztM0_level2.evt modeM0/AS1A10_071T07_9000004322_30067cztM0_level2_quad_clean.evt
Size (bytes)306,532,80047,761,920
Size292.3 MB 45.5 MB
Events in quadrant A1,981,916303,973
Events in quadrant B2,967,904302,372
Events in quadrant C1,971,714287,550
Events in quadrant D2,105,009285,890

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080961
B0116071
C080431
D085511

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37631102.923200%
B37631714.544247%
C37631243.295243%
D3764842.231668%

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 4903 3764 0 0 0.00% 0.00%
B 4903 3764 1 1 0.02% 0.03%
C 4903 3764 0 0 0.00% 0.00%
D 4904 3765 15 15 0.31% 0.40%

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 8 192 12783 118.95 511 502 103.2
A 13 254 5645 49.82 511 502 103.2
A 3 137 5234 45.83 511 502 103.2
B 6 159 996648 10216.15 497 485 97.5
B 12 111 11966 117.74 497 485 97.5
B 11 111 11019 108.03 497 485 97.5
C 14 238 77635 675.74 480 483 114.2
C 2 114 8887 73.61 480 483 114.2
C 3 233 8319 68.63 480 483 114.2
D 13 104 106060 896.62 489 478 117.8
D 8 195 67310 567.55 489 478 117.8
D 2 250 48490 407.72 489 478 117.8

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