ASTROSAT CZTI

Data Quality Report

Orbit 46330

Creation date: 2024-06-27T23:21:48.973209
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/AS1T05_200T01_9000006196_46330cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46330cztM0_level2_quad_clean.evt
Size (bytes)635,103,36095,690,880
Size605.7 MB 91.3 MB
Events in quadrant A11,830,320387,368
Events in quadrant B4,013,278741,793
Events in quadrant C2,955,316713,766
Events in quadrant D4,227,875620,948

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0394711
B0159131
C0129521
D0168081

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6214343855.326682%
B62142674.296749%
C6215951.528560%
D62154457.160097%

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 7344 6215 2592 2592 35.29% 41.71%
B 7344 6215 75 75 1.02% 1.21%
C 7345 6216 3 3 0.04% 0.05%
D 7345 6215 283 283 3.85% 4.55%

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 15 223 7316219 60983.72 580 568 120.0
A 10 83 2251415 18763.2 580 568 120.0
A 2 79 11469 90.87 580 568 120.0
B 3 112 551752 3863.15 726 703 142.6
B 4 171 308227 2155.91 726 703 142.6
B 5 172 173348 1210.34 726 703 142.6
C 1 3 69061 406.35 721 727 168.2
C 12 249 40975 239.33 721 727 168.2
C 12 2 28920 167.65 721 727 168.2
D 13 249 1016689 5740.26 703 679 177.0
D 1 52 373324 2105.37 703 679 177.0
D 12 128 35088 194.4 703 679 177.0

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