ASTROSAT CZTI

Data Quality Report

Orbit 03606

Creation date: 2024-06-27T14:31:32.145859
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_246T04_9000000472_03606cztM0_level2.evt modeM0/AS1G05_246T04_9000000472_03606cztM0_level2_quad_clean.evt
Size (bytes)132,431,04032,402,880
Size126.3 MB 30.9 MB
Events in quadrant A860,411211,744
Events in quadrant B1,211,030209,129
Events in quadrant C928,478209,455
Events in quadrant D872,603205,526

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040270
B050150
C041710
D040890

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A199220.100402%
B1992120.602410%
C1992130.652610%
D199290.451807%

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 1992 1992 2 2 0.10% 0.10%
B 1992 1992 10 10 0.50% 0.50%
C 1992 1992 10 10 0.50% 0.50%
D 1992 1992 4 4 0.20% 0.20%

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 15456 330.09 216 212 46.2
A 7 16 7179 150.86 216 212 46.2
A 12 194 2320 45.65 216 212 46.2
B 15 204 250971 5758.49 218 213 43.5
B 2 249 34876 796.01 218 213 43.5
B 4 81 25344 577.12 218 213 43.5
C 9 247 50608 983.52 214 216 51.2
C 2 53 19433 375.07 214 216 51.2
C 1 16 11291 216.16 214 216 51.2
D 13 223 21178 389.66 215 209 53.8
D 5 233 11114 202.65 215 209 53.8
D 10 34 11065 201.73 215 209 53.8

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
Veto Counter