ASTROSAT CZTI

Data Quality Report

Orbit 03317

Creation date: 2024-06-27T14:27:30.801450
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_241T02_9000000448_03317cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03317cztM0_level2_quad_clean.evt
Size (bytes)669,646,080101,678,400
Size638.6 MB 97.0 MB
Events in quadrant A4,354,914619,436
Events in quadrant B6,370,260612,811
Events in quadrant C4,535,820607,682
Events in quadrant D4,391,926596,637

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194283
B0253432
C0197082
D0198192

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A92622172.342906%
B92622682.893544%
C92621541.662708%
D92621912.062190%

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 10957 9264 11 11 0.10% 0.12%
B 10957 9264 25 25 0.23% 0.27%
C 10957 9264 8 8 0.07% 0.09%
D 10957 9264 29 29 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 0 118 50231 215.55 1106 1081 228.0
A 0 50 33675 142.95 1106 1081 228.0
A 0 226 16056 65.67 1106 1081 228.0
B 15 204 1939769 8936.37 1110 1083 216.9
B 2 249 40851 183.31 1110 1083 216.9
B 0 229 29347 130.28 1110 1083 216.9
C 1 192 118274 460.74 1080 1087 254.3
C 1 16 100763 391.9 1080 1087 254.3
C 12 4 40772 156.03 1080 1087 254.3
D 13 223 204807 773.7 1079 1048 263.4
D 12 233 41025 151.8 1079 1048 263.4
D 5 233 21504 77.67 1079 1048 263.4

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