ASTROSAT CZTI

Data Quality Report

Orbit 43726

Creation date: 2024-06-27T22:55:04.194177
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/AS1A13_003T01_9000005902_43726cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43726cztM0_level2_quad_clean.evt
Size (bytes)718,044,480126,207,360
Size684.8 MB 120.4 MB
Events in quadrant A5,959,891856,088
Events in quadrant B4,463,820887,010
Events in quadrant C7,269,799833,354
Events in quadrant D8,269,251690,136

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227211
B0187980
C0270750
D0301440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79752202.758621%
B79761682.106319%
C79765126.419258%
D7976122815.396189%

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 7975 7975 121 121 1.52% 1.52%
B 7976 7976 100 100 1.25% 1.25%
C 7976 7976 615 615 7.71% 7.71%
D 7976 7976 806 806 10.11% 10.11%

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 14 63 928811 4883.47 906 884 190.0
A 10 83 920383 4839.11 906 884 190.0
A 15 223 330887 1736.73 906 884 190.0
B 5 235 599847 3375.73 905 878 177.4
B 12 3 103454 578.11 905 878 177.4
B 4 171 64253 357.18 905 878 177.4
C 15 158 3393596 16036.46 892 894 211.6
C 15 157 129679 608.73 892 894 211.6
C 15 126 110410 517.65 892 894 211.6
D 1 52 914009 4233.23 849 824 215.7
D 7 80 635368 2941.54 849 824 215.7
D 5 235 508403 2352.97 849 824 215.7

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