ASTROSAT CZTI

Data Quality Report

Orbit 08479

Creation date: 2024-06-27T15:33:13.565235
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/AS1A03_030T01_9000001194_08479cztM0_level2.evt modeM0/AS1A03_030T01_9000001194_08479cztM0_level2_quad_clean.evt
Size (bytes)365,371,20065,280,960
Size348.4 MB 62.3 MB
Events in quadrant A2,488,661406,477
Events in quadrant B2,669,387409,255
Events in quadrant C2,419,329402,208
Events in quadrant D3,121,592382,094

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110762
B0115272
C0109762
D0132552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5383190.352963%
B5383470.873119%
C5383140.260078%
D53831532.842281%

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 6573 5384 1 1 0.02% 0.02%
B 6573 5384 16 16 0.24% 0.30%
C 6573 5384 0 0 0.00% 0.00%
D 6573 5384 97 97 1.48% 1.80%

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 4 2 35894 271.89 635 621 129.7
A 13 251 6681 46.71 635 621 129.7
A 0 226 5846 40.28 635 621 129.7
B 0 214 58461 469.12 636 621 123.3
B 5 255 57475 461.12 636 621 123.3
B 0 245 34062 271.23 636 621 123.3
C 9 54 5256 31.99 618 620 144.9
C 13 61 4571 27.27 618 620 144.9
C 8 222 3203 17.82 618 620 144.9
D 1 52 655023 4336.67 605 590 150.9
D 12 221 65776 431.96 605 590 150.9
D 2 136 36680 239.15 605 590 150.9

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