ASTROSAT CZTI

Data Quality Report

Orbit 46115

Creation date: 2024-06-27T23:19:25.490635
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_9000006170_46115cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46115cztM0_level2_quad_clean.evt
Size (bytes)704,494,080107,585,280
Size671.9 MB 102.6 MB
Events in quadrant A6,287,077752,209
Events in quadrant B3,337,408807,533
Events in quadrant C3,268,409786,140
Events in quadrant D12,633,018415,071

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235852
B0149972
C0150412
D0424646

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71232112.962235%
B7123640.898498%
C7123540.758108%
D7122339747.697276%

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 7738 7124 10 10 0.13% 0.14%
B 7738 7124 8 8 0.10% 0.11%
C 7738 7124 31 31 0.40% 0.44%
D 7737 7123 2908 2908 37.59% 40.83%

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 3153084 19723.26 771 752 159.8
A 9 191 113712 706.76 771 752 159.8
A 13 248 32290 197.32 771 752 159.8
B 3 112 71930 461.13 787 760 154.3
B 5 172 52186 333.2 787 760 154.3
B 0 190 33949 215.04 787 760 154.3
C 2 14 175540 965.09 780 784 181.1
C 3 9 24556 131.28 780 784 181.1
C 14 254 17700 93.42 780 784 181.1
D 2 37 6320790 41031.1 613 595 154.0
D 1 52 2205641 14315.3 613 595 154.0
D 13 249 1325248 8599.73 613 595 154.0

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