ASTROSAT CZTI

Data Quality Report

Orbit 03588

Creation date: 2024-06-27T14:31:20.069473
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_03588cztM0_level2.evt modeM0/AS1G05_246T03_9000000470_03588cztM0_level2_quad_clean.evt
Size (bytes)599,912,64078,917,760
Size572.1 MB 75.3 MB
Events in quadrant A3,262,056511,114
Events in quadrant B3,593,133513,355
Events in quadrant C7,740,017415,472
Events in quadrant D3,129,387492,415

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139253
B0147152
C0273922
D0137272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6552801.221001%
B6552721.098901%
C6552167225.518926%
D6552590.900488%

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 7787 6553 3 3 0.04% 0.05%
B 7787 6553 4 4 0.05% 0.06%
C 7787 6553 1446 1446 18.57% 22.07%
D 7787 6553 20 20 0.26% 0.31%

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 42072 247.17 822 806 167.0
A 0 118 18226 104.34 822 806 167.0
A 13 248 13414 75.52 822 806 167.0
B 15 204 214710 1362.85 823 803 157.0
B 4 81 103293 652.98 823 803 157.0
B 4 200 22964 141.19 823 803 157.0
C 2 53 4669823 28794.75 702 706 162.2
C 15 208 311336 1915.68 702 706 162.2
C 1 16 10085 57.84 702 706 162.2
D 12 157 38391 197.27 792 771 190.7
D 1 84 34915 179.04 792 771 190.7
D 13 223 26278 133.75 792 771 190.7

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
Veto Counter