ASTROSAT CZTI

Data Quality Report

Orbit 34014

Creation date: 2024-06-27T20:55:23.299550
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/AS1A11_106T03_9000004864_34014cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34014cztM0_level2_quad_clean.evt
Size (bytes)471,476,16075,983,040
Size449.6 MB 72.5 MB
Events in quadrant A2,644,423487,986
Events in quadrant B3,388,062493,076
Events in quadrant C2,998,326483,147
Events in quadrant D4,875,230452,156

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114453
B0136142
C0121752
D0185142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A549480.145613%
B54941272.311613%
C5494711.292319%
D54942204.004368%

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 7317 5495 4 4 0.05% 0.07%
B 7317 5495 100 100 1.37% 1.82%
C 7317 5495 57 57 0.78% 1.04%
D 7317 5495 197 197 2.69% 3.59%

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 115576 903.13 642 631 127.3
A 13 6 19621 149.21 642 631 127.3
A 10 83 17403 131.78 642 631 127.3
B 5 172 494660 4099.99 635 619 120.5
B 0 190 157864 1304.96 635 619 120.5
B 0 189 89103 734.32 635 619 120.5
C 15 214 254284 1786.85 615 618 142.0
C 0 10 211268 1483.84 615 618 142.0
C 3 233 81898 572.54 615 618 142.0
D 8 195 1433301 8972.88 605 591 159.7
D 2 249 316267 1977.04 605 591 159.7
D 2 250 215348 1345.0 605 591 159.7

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