ASTROSAT CZTI

Data Quality Report

Orbit 45867

Creation date: 2024-06-27T23:17:05.814861
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_034T01_9000006134_45867cztM0_level2.fits modeM0/AS1A13_034T01_9000006134_45867cztM0_level2_quad_clean.evt
Size (bytes)656,458,56089,611,200
Size626.0 MB 85.5 MB
Events in quadrant A5,530,756674,822
Events in quadrant B10,881,632362,904
Events in quadrant C2,755,286676,579
Events in quadrant D4,657,244571,294

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206531
B0365371
C0126291
D0180861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61221702.776870%
B6122335754.835021%
C6123410.669606%
D61235959.717459%

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 7172 6124 12 12 0.17% 0.20%
B 7171 6123 2535 2535 35.35% 41.40%
C 7173 6125 7 7 0.10% 0.11%
D 7173 6125 508 508 7.08% 8.29%

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 2783490 19318.81 690 673 144.0
A 0 247 40590 277.11 690 673 144.0
A 13 248 14310 94.67 690 673 144.0
B 3 112 8239772 76191.44 555 539 108.1
B 0 183 99181 912.18 555 539 108.1
B 0 189 88253 811.13 555 539 108.1
C 12 2 40094 242.5 691 693 162.5
C 12 249 11442 66.16 691 693 162.5
C 3 233 6868 38.01 691 693 162.5
D 13 138 909340 5477.27 664 644 165.9
D 13 249 438073 2636.65 664 644 165.9
D 1 52 286384 1722.33 664 644 165.9

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