ASTROSAT CZTI

Data Quality Report

Orbit 03584

Creation date: 2024-06-27T14:31:16.857258
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/AS1G05_246T03_9000000470_03584cztM0_level2.evt modeM0/AS1G05_246T03_9000000470_03584cztM0_level2_quad_clean.evt
Size (bytes)515,090,88080,801,280
Size491.2 MB 77.1 MB
Events in quadrant A3,436,816481,338
Events in quadrant B3,820,114487,985
Events in quadrant C4,175,050479,364
Events in quadrant D3,653,131471,163

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154673
B0159992
C0176032
D0161892

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75691211.598626%
B75691281.691108%
C75692703.567182%
D75691011.334390%

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 9114 7571 1 1 0.01% 0.01%
B 9114 7571 1 1 0.01% 0.01%
C 9114 7571 186 186 2.04% 2.46%
D 9114 7571 8 8 0.09% 0.11%

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 0 50 11477 58.55 883 862 181.3
A 3 1 10865 55.17 883 862 181.3
A 0 226 9270 46.38 883 862 181.3
B 15 204 290786 1637.03 900 877 177.1
B 0 229 15812 84.33 900 877 177.1
B 12 111 14015 74.19 900 877 177.1
C 15 208 770822 3823.52 857 861 201.4
C 8 128 22000 104.97 857 861 201.4
C 8 112 9169 41.26 857 861 201.4
D 1 84 155917 746.9 857 831 207.6
D 12 79 141175 675.91 857 831 207.6
D 2 14 27447 128.18 857 831 207.6

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