ASTROSAT CZTI

Data Quality Report

Orbit 45674

Creation date: 2024-06-27T23:14:51.885482
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_093T12_9000006118_45674cztM0_level2.fits modeM0/AS1A13_093T12_9000006118_45674cztM0_level2_quad_clean.evt
Size (bytes)428,978,88097,439,040
Size409.1 MB 92.9 MB
Events in quadrant A5,096,366650,524
Events in quadrant B3,217,529658,734
Events in quadrant C3,087,161646,783
Events in quadrant D4,007,523571,331

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190601
B0137751
C0137071
D0161451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60601091.798680%
B60612013.316284%
C6061741.220921%
D60612874.735192%

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 7060 6060 2 2 0.03% 0.03%
B 7061 6061 131 131 1.86% 2.16%
C 7061 6062 60 60 0.85% 0.99%
D 7061 6062 264 264 3.74% 4.35%

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 2461147 17975.18 661 648 136.9
A 13 248 49184 354.58 661 648 136.9
A 14 235 25114 178.74 661 648 136.9
B 5 172 443353 3447.04 653 635 128.4
B 0 155 43096 330.6 653 635 128.4
B 0 189 34370 262.66 653 635 128.4
C 14 254 481774 3188.29 644 648 150.9
C 1 3 75539 496.28 644 648 150.9
C 12 2 9037 55.59 644 648 150.9
D 13 249 1186583 7335.14 636 615 161.7
D 1 52 184850 1139.48 636 615 161.7
D 2 249 95590 587.41 636 615 161.7

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