ASTROSAT CZTI

Data Quality Report

Orbit 48360

Creation date: 2024-09-07T10:51:22.330623
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/AS1A13_029T01_9000006426_48360cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48360cztM0_level2_quad_clean.evt
Size (bytes)453,173,760112,985,280
Size432.2 MB 107.8 MB
Events in quadrant A7,004,922749,138
Events in quadrant B3,190,533781,570
Events in quadrant C3,074,837749,091
Events in quadrant D2,994,516683,421

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263141
B0137871
C0136661
D0135481

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65702573.911720%
B65701171.780822%
C6571620.943540%
D6571761.156597%

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 7720 6570 42 42 0.54% 0.64%
B 7720 6570 16 16 0.21% 0.24%
C 7721 6571 16 16 0.21% 0.24%
D 7721 6571 5 5 0.06% 0.08%

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 3938825 24801.32 765 749 158.8
A 13 248 90223 563.49 765 749 158.8
A 15 235 14798 88.48 765 749 158.8
B 8 234 51235 335.6 763 740 150.5
B 0 198 36368 236.79 763 740 150.5
B 4 21 32576 211.59 763 740 150.5
C 12 2 49478 275.18 755 761 177.0
C 12 249 31276 172.37 755 761 177.0
C 3 110 19046 103.28 755 761 177.0
D 2 249 32672 167.9 762 740 190.2
D 5 32 30472 156.33 762 740 190.2
D 2 234 29957 153.62 762 740 190.2

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