ASTROSAT CZTI

Data Quality Report

Orbit 41095

Creation date: 2024-06-27T22:24:21.300284
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/AS1A12_095T02_9000005596_41095cztM0_level2.fits modeM0/AS1A12_095T02_9000005596_41095cztM0_level2_quad_clean.evt
Size (bytes)328,864,32093,916,800
Size313.6 MB 89.6 MB
Events in quadrant A3,057,718635,339
Events in quadrant B3,066,399648,948
Events in quadrant C2,698,971613,216
Events in quadrant D2,924,661564,275

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122653
B0126202
C0112842
D0123562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5465200.365965%
B5465821.500457%
C5465250.457457%
D5465621.134492%

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 8901 5467 5 5 0.06% 0.09%
B 8901 5467 54 54 0.61% 0.99%
C 8901 5467 16 16 0.18% 0.29%
D 8901 5467 45 45 0.51% 0.82%

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 538912 4132.4 636 623 130.3
A 2 79 40798 308.42 636 623 130.3
A 12 189 11161 80.9 636 623 130.3
B 0 245 309313 2552.51 625 608 120.9
B 0 186 191351 1577.15 625 608 120.9
B 5 255 55946 457.56 625 608 120.9
C 15 214 235307 1646.08 611 617 142.6
C 0 10 70801 492.26 611 617 142.6
C 14 254 8927 58.28 611 617 142.6
D 13 249 171089 1142.36 612 596 149.2
D 2 249 168684 1126.24 612 596 149.2
D 12 233 90035 599.27 612 596 149.2

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