ASTROSAT CZTI

Data Quality Report

Orbit 14412

Creation date: 2024-06-27T16:54:47.723131
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/AS1A04_186T01_9000002126_14412cztM0_level2.evt modeM0/AS1A04_186T01_9000002126_14412cztM0_level2_quad_clean.evt
Size (bytes)526,913,28099,552,960
Size502.5 MB 94.9 MB
Events in quadrant A3,122,918662,505
Events in quadrant B3,634,820644,652
Events in quadrant C4,062,279643,324
Events in quadrant D4,708,629623,020

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136093
B0150492
C0163412
D0183272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6327370.584795%
B63271652.607871%
C63271061.675360%
D63274907.744587%

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 7463 6328 6 6 0.08% 0.09%
B 7463 6328 74 74 0.99% 1.17%
C 7463 6329 15 15 0.20% 0.24%
D 7463 6329 313 313 4.19% 4.95%

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 8 15 65758 411.66 779 764 157.9
A 12 189 22435 137.26 779 764 157.9
A 15 69 14017 83.94 779 764 157.9
B 0 189 251580 1726.04 771 752 145.3
B 0 229 236034 1619.07 771 752 145.3
B 15 222 35228 237.24 771 752 145.3
C 3 233 1108542 6317.32 755 759 175.4
C 0 207 7895 40.69 755 759 175.4
C 13 61 5372 26.31 755 759 175.4
D 13 122 1369768 7051.15 739 721 194.2
D 1 52 200950 1031.26 739 721 194.2
D 2 120 99701 509.79 739 721 194.2

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