ASTROSAT CZTI

Data Quality Report

Orbit 33363

Creation date: 2024-06-27T20:47:53.731003
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_058T15_9000004786_33363cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33363cztM0_level2_quad_clean.evt
Size (bytes)555,888,96052,110,720
Size530.1 MB 49.7 MB
Events in quadrant A3,378,607311,524
Events in quadrant B3,771,520301,615
Events in quadrant C3,228,787315,523
Events in quadrant D6,103,471283,142

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135183
B0144332
C0126772
D0218602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5217260.498371%
B52173386.478819%
C5217621.188422%
D521768813.187656%

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 7070 5218 10 10 0.14% 0.19%
B 7070 5218 150 150 2.12% 2.87%
C 7070 5218 57 57 0.81% 1.09%
D 7070 5218 651 651 9.21% 12.48%

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 15 169 816848 6217.83 657 646 131.3
A 8 205 21060 155.51 657 646 131.3
A 13 254 7785 54.38 657 646 131.3
B 5 172 560481 4590.32 650 634 122.0
B 0 219 453766 3715.34 650 634 122.0
B 5 200 46865 379.06 650 634 122.0
C 1 23 271232 1837.64 644 651 147.2
C 15 214 229578 1554.74 644 651 147.2
C 0 10 131321 887.44 644 651 147.2
D 1 52 994002 6573.17 617 601 151.1
D 8 195 793024 5243.33 617 601 151.1
D 13 249 673396 4451.77 617 601 151.1

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