ASTROSAT CZTI

Data Quality Report

Orbit 03384

Creation date: 2024-06-27T14:28:18.113387
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/AS1G05_112T01_9000000452_03384cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03384cztM0_level2_quad_clean.evt
Size (bytes)434,620,80072,889,920
Size414.5 MB 69.5 MB
Events in quadrant A3,190,974446,745
Events in quadrant B3,306,863446,309
Events in quadrant C3,194,091440,887
Events in quadrant D3,033,249424,444

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137573
B0141042
C0137282
D0136722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6427580.902443%
B6427590.918002%
C6427240.373425%
D6427410.637934%

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 7592 6428 10 10 0.13% 0.16%
B 7592 6428 5 5 0.07% 0.08%
C 7592 6428 5 5 0.07% 0.08%
D 7592 6428 18 18 0.24% 0.28%

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 8 15 117227 744.06 768 751 156.5
A 0 118 40891 256.42 768 751 156.5
A 14 249 34313 214.4 768 751 156.5
B 15 204 123933 818.88 781 762 150.4
B 14 167 69397 456.31 781 762 150.4
B 0 229 45363 296.52 781 762 150.4
C 14 48 199100 1130.92 750 757 175.4
C 12 4 18822 103.0 750 757 175.4
C 1 192 16844 91.73 750 757 175.4
D 13 223 165380 923.85 742 723 178.2
D 14 34 25650 139.86 742 723 178.2
D 13 137 9250 47.84 742 723 178.2

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