ASTROSAT CZTI

Data Quality Report

Orbit 46110

Creation date: 2024-06-27T23:19:20.879563
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/AS1C07_001T10_9000006170_46110cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46110cztM0_level2_quad_clean.evt
Size (bytes)744,612,48090,403,200
Size710.1 MB 86.2 MB
Events in quadrant A5,799,256713,386
Events in quadrant B3,135,856756,603
Events in quadrant C3,137,961721,322
Events in quadrant D14,997,730103,468

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216130
B0136330
C0137610
D0488890

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63401963.091483%
B6341520.820060%
C63401171.845426%
D6340555087.539432%

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 7500 6341 23 23 0.31% 0.36%
B 7501 6342 5 5 0.07% 0.08%
C 7500 6340 61 61 0.81% 0.96%
D 7500 6340 4721 4721 62.95% 74.46%

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 2981782 19972.89 720 704 149.3
A 14 235 15691 100.41 720 704 149.3
A 13 254 10343 64.58 720 704 149.3
B 3 112 64732 452.37 728 706 141.5
B 0 190 62631 437.52 728 706 141.5
B 0 186 49550 345.1 728 706 141.5
C 14 254 308843 1839.85 719 723 167.5
C 3 233 17424 99.73 719 723 167.5
C 12 249 4976 25.4 719 723 167.5
D 2 37 10657062 118689.31 354 343 89.8
D 8 129 2411750 26857.07 354 343 89.8
D 1 52 219321 2438.87 354 343 89.8

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