ASTROSAT CZTI

Data Quality Report

Orbit 38369

Creation date: 2024-06-27T21:51:45.836151
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/AS1A10_094T24_9000005374_38369cztM0_level2.fits modeM0/AS1A10_094T24_9000005374_38369cztM0_level2_quad_clean.evt
Size (bytes)47,321,2805,705,280
Size45.1 MB 5.4 MB
Events in quadrant A258,44645,331
Events in quadrant B230,63446,257
Events in quadrant C199,93844,189
Events in quadrant D1,027,125689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010181
B09361
C08331
D033271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40910.244499%
B40920.488998%
C40910.244499%
D40940298.288509%

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 1722 410 3 3 0.17% 0.73%
B 1722 410 0 0 0.00% 0.00%
C 1722 410 0 0 0.00% 0.00%
D 1722 409 374 374 21.72% 91.44%

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 10 83 65418 5459.23 47 46 12.0
A 12 189 3039 249.95 47 46 12.0
A 10 67 2160 176.54 47 46 12.0
B 5 184 6243 549.54 47 46 11.3
B 15 85 5502 483.83 47 46 11.3
B 0 230 5440 478.33 47 46 11.3
C 15 214 18925 1519.15 45 45 12.4
C 0 10 3820 303.75 45 45 12.4
C 14 67 471 34.28 45 45 12.4
D 10 203 477945 53673.92 27 26 8.9
D 12 227 228766 25689.23 27 26 8.9
D 11 176 129314 14520.02 27 26 8.9

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