ASTROSAT CZTI

Data Quality Report

Orbit 39418

Creation date: 2024-06-27T22:04:18.702128
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_074T01_9000005472_39418cztM0_level2.fits modeM0/AS1T05_074T01_9000005472_39418cztM0_level2_quad_clean.evt
Size (bytes)123,347,52013,947,840
Size117.6 MB 13.3 MB
Events in quadrant A1,012,727106,890
Events in quadrant B473,719128,215
Events in quadrant C686,389113,125
Events in quadrant D2,318,9443,274

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036431
B019221
C025631
D075281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A91512813.989071%
B91530.327869%
C915576.229508%
D91589497.704918%

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 915 915 122 122 13.33% 13.33%
B 915 915 0 0 0.00% 0.00%
C 915 915 48 48 5.25% 5.25%
D 914 914 756 756 82.71% 82.71%

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 15 222 462194 20562.33 102 99 22.5
A 10 83 117789 5236.98 102 99 22.5
A 13 248 33115 1469.15 102 99 22.5
B 6 203 13160 566.41 110 107 23.0
B 5 172 12440 535.16 110 107 23.0
B 5 255 11423 491.03 110 107 23.0
C 15 208 176984 6671.88 105 107 26.5
C 10 70 49901 1878.25 105 107 26.5
C 15 214 41159 1548.5 105 107 26.5
D 12 235 1468932 119715.5 43 41 12.3
D 12 0 597590 48700.6 43 41 12.3
D 12 227 30225 2460.01 43 41 12.3

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