ASTROSAT CZTI

Data Quality Report

Orbit 43179

Creation date: 2024-06-27T22:48:56.739487
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_9000005856_43179cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43179cztM0_level2_quad_clean.evt
Size (bytes)350,985,60090,103,680
Size334.7 MB 85.9 MB
Events in quadrant A3,226,549595,181
Events in quadrant B2,741,555612,523
Events in quadrant C4,080,008580,300
Events in quadrant D2,505,345546,046

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133212
B0123372
C0159982
D0118142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5638581.028734%
B5638320.567577%
C5638941.667258%
D5638150.266052%

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 7250 5639 36 36 0.50% 0.64%
B 7250 5639 20 20 0.28% 0.35%
C 7250 5639 85 85 1.17% 1.51%
D 7250 5639 12 12 0.17% 0.21%

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 584112 4755.24 595 582 122.7
A 13 248 147801 1199.7 595 582 122.7
A 15 237 91464 740.6 595 582 122.7
B 0 189 207155 1775.2 595 578 116.4
B 0 186 156716 1341.76 595 578 116.4
B 5 255 36137 305.57 595 578 116.4
C 0 239 1544226 11477.89 578 580 134.5
C 15 214 235583 1747.38 578 580 134.5
C 14 254 18285 131.65 578 580 134.5
D 1 52 87369 600.25 582 565 144.6
D 1 47 69491 476.62 582 565 144.6
D 7 96 39167 266.93 582 565 144.6

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