ASTROSAT CZTI

Data Quality Report

Orbit 12294

Creation date: 2024-06-27T16:25:05.083286
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_183T02_9000001816_12294cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12294cztM0_level2_quad_clean.evt
Size (bytes)814,743,36091,131,840
Size777.0 MB 86.9 MB
Events in quadrant A3,930,370614,656
Events in quadrant B4,522,514609,644
Events in quadrant C3,407,272625,767
Events in quadrant D12,312,282392,006

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163982
B0182371
C0153131
D0415921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74201241.671159%
B74203374.541779%
C7420520.700809%
D7420384751.846361%

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 7741 7422 10 10 0.13% 0.13%
B 7741 7422 153 153 1.98% 2.06%
C 7741 7422 1 1 0.01% 0.01%
D 7741 7421 2770 2770 35.78% 37.33%

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 1 162 123098 670.05 886 867 182.4
A 1 178 60829 328.7 886 867 182.4
A 0 23 58527 316.08 886 867 182.4
B 4 239 610885 3641.54 873 850 167.5
B 11 51 132608 786.52 873 850 167.5
B 0 85 103743 614.21 873 850 167.5
C 14 234 24945 119.19 859 863 202.1
C 15 208 13082 60.47 859 863 202.1
C 8 128 9919 44.82 859 863 202.1
D 1 52 9145574 62286.55 604 585 146.8
D 5 222 442516 3009.99 604 585 146.8
D 7 71 129815 880.19 604 585 146.8

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