ASTROSAT CZTI

Data Quality Report

Orbit 23220

Creation date: 2024-06-27T18:51:28.702272
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/AS1C05_002T02_9000003432_23220cztM0_level2.evt modeM0/AS1C05_002T02_9000003432_23220cztM0_level2_quad_clean.evt
Size (bytes)160,295,04026,760,960
Size152.9 MB 25.5 MB
Events in quadrant A860,452176,251
Events in quadrant B883,289179,988
Events in quadrant C922,121171,809
Events in quadrant D2,062,061148,303

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B051
C051
D062

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05816
B05717
C06018
D05612

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051421393
B052041412
C054221545
D0108033448

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1826120.657174%
B1832201.091703%
C1809361.990050%
D178150528.354857%

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 4507 1888 0 0 0.00% 0.00%
B 4507 1891 0 0 0.00% 0.00%
C 4507 1870 0 0 0.00% 0.00%
D 4506 1825 401 401 8.90% 21.97%

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 13 254 2596 50.95 223 217 46.7
A 3 137 1962 37.37 223 217 46.7
A 0 226 1899 36.02 223 217 46.7
B 12 111 5202 112.85 223 218 44.2
B 3 64 4975 107.71 223 218 44.2
B 11 111 4645 100.24 223 218 44.2
C 2 16 33845 657.15 212 212 51.2
C 14 238 33307 646.64 212 212 51.2
C 0 10 23895 462.74 212 212 51.2
D 1 52 830858 17792.74 186 181 46.7
D 7 238 297896 6376.92 186 181 46.7
D 13 153 165043 3531.27 186 181 46.7

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter