ASTROSAT CZTI

Data Quality Report

Orbit 03342

Creation date: 2024-06-27T14:27:47.474808
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_246T01_9000000450_03342cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03342cztM0_level2_quad_clean.evt
Size (bytes)556,119,36089,029,440
Size530.4 MB 84.9 MB
Events in quadrant A3,347,922549,130
Events in quadrant B4,332,019561,454
Events in quadrant C5,434,310557,044
Events in quadrant D3,250,047537,391

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146573
B0176162
C0210202
D0146252

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7047400.567617%
B70471301.844757%
C70471882.667802%
D7047220.312190%

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 9432 7049 1 1 0.01% 0.01%
B 9432 7049 44 44 0.47% 0.62%
C 9432 7049 127 127 1.35% 1.80%
D 9432 7049 7 7 0.07% 0.10%

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 14 249 20831 114.06 850 830 175.4
A 8 15 20406 111.63 850 830 175.4
A 0 118 18087 98.41 850 830 175.4
B 15 204 455684 2721.6 866 846 167.1
B 3 0 281958 1682.08 866 846 167.1
B 6 203 79498 470.63 866 846 167.1
C 8 208 1398589 7184.6 833 840 194.5
C 14 223 610720 3134.86 833 840 194.5
C 1 192 60538 306.85 833 840 194.5
D 2 206 34749 167.39 832 810 202.8
D 8 195 33666 162.05 832 810 202.8
D 5 233 16817 78.95 832 810 202.8

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