ASTROSAT CZTI

Data Quality Report

Orbit 47359

Creation date: 2024-07-01T05:32:20.422090
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_093T17_9000006322_47359cztM0_level2.fits modeM0/AS1A13_093T17_9000006322_47359cztM0_level2_quad_clean.evt
Size (bytes)587,949,120105,963,840
Size560.7 MB 101.1 MB
Events in quadrant A6,849,810697,569
Events in quadrant B3,291,687769,911
Events in quadrant C7,580,722633,338
Events in quadrant D3,551,550665,815

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244634
B0140102
C0269262
D0149452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63364907.733586%
B6336701.104798%
C633697315.356692%
D63361171.846591%

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 7566 6337 226 226 2.99% 3.57%
B 7566 6336 7 7 0.09% 0.11%
C 7566 6336 812 812 10.73% 12.82%
D 7566 6337 85 85 1.12% 1.34%

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 3517946 23139.26 734 717 152.0
A 9 191 286196 1878.12 734 717 152.0
A 15 235 168052 1100.87 734 717 152.0
B 14 167 74432 494.68 753 730 149.0
B 5 255 53280 352.71 753 730 149.0
B 0 190 52331 346.34 753 730 149.0
C 0 207 4809548 29585.1 690 694 162.5
C 3 233 49664 301.27 690 694 162.5
C 12 2 15935 93.77 690 694 162.5
D 2 249 217160 1158.34 738 717 186.9
D 12 233 159601 850.3 738 717 186.9
D 12 128 145705 775.93 738 717 186.9

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