ASTROSAT CZTI

Data Quality Report

Orbit 03646

Creation date: 2024-06-27T14:31:54.522312
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_234T02_9000000474_03646cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03646cztM0_level2_quad_clean.evt
Size (bytes)489,657,60083,687,040
Size467.0 MB 79.8 MB
Events in quadrant A3,385,035532,907
Events in quadrant B4,680,314526,211
Events in quadrant C3,143,016519,994
Events in quadrant D3,184,939507,206

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142173
B0181372
C0137232
D0138942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64211372.133624%
B64214837.522193%
C6421881.370503%
D6421751.168042%

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 7626 6422 26 26 0.34% 0.40%
B 7626 6422 216 216 2.83% 3.36%
C 7626 6422 10 10 0.13% 0.16%
D 7626 6422 11 11 0.14% 0.17%

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 13 251 269022 1675.09 790 772 160.1
A 0 50 29571 179.84 790 772 160.1
A 15 174 13862 81.74 790 772 160.1
B 5 172 902841 6086.95 769 750 148.2
B 15 204 354725 2388.48 769 750 148.2
B 4 81 191175 1284.91 769 750 148.2
C 2 53 80285 452.49 758 762 175.7
C 9 247 60729 341.22 758 762 175.7
C 12 4 17271 93.94 758 762 175.7
D 1 84 112576 622.38 762 742 179.7
D 12 110 62495 343.67 762 742 179.7
D 13 223 28115 152.34 762 742 179.7

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