ASTROSAT CZTI

Data Quality Report

Orbit 47364

Creation date: 2024-07-01T14:32:36.741042
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_47364cztM0_level2.fits modeM0/AS1A13_093T17_9000006322_47364cztM0_level2_quad_clean.evt
Size (bytes)352,232,64076,858,560
Size335.9 MB 73.3 MB
Events in quadrant A5,357,610478,070
Events in quadrant B2,456,144529,299
Events in quadrant C2,231,969508,258
Events in quadrant D2,607,927464,622

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195007
B0107640
C0102930
D0112443

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49434128.335019%
B4945631.274014%
C4946360.727861%
D4944851.719256%

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 4945 4944 329 329 6.65% 6.65%
B 4945 4945 33 33 0.67% 0.67%
C 4946 4946 29 29 0.59% 0.59%
D 4946 4945 65 65 1.31% 1.31%

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 2367041 21425.56 524 513 110.5
A 15 235 816030 7383.35 524 513 110.5
A 9 191 135541 1222.49 524 513 110.5
B 5 255 133523 1248.54 532 516 106.5
B 5 172 65917 613.92 532 516 106.5
B 4 171 32950 304.46 532 516 106.5
C 0 207 137233 1093.31 526 529 125.0
C 3 233 30352 238.51 526 529 125.0
C 1 3 15710 121.41 526 529 125.0
D 2 249 372549 2761.69 526 509 134.7
D 5 32 91519 675.58 526 509 134.7
D 2 165 73721 543.46 526 509 134.7

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