ASTROSAT CZTI

Data Quality Report

Orbit 04506

Creation date: 2024-06-27T14:43:04.584243
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/AS1G05_083T03_9000000566_04506cztM0_level2.evt modeM0/AS1G05_083T03_9000000566_04506cztM0_level2_quad_clean.evt
Size (bytes)636,428,16084,139,200
Size606.9 MB 80.2 MB
Events in quadrant A4,956,159504,271
Events in quadrant B3,817,882523,950
Events in quadrant C4,351,495519,150
Events in quadrant D5,658,905496,249

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197412
B0160674
C0180131
D0218381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72435998.270054%
B72421311.808893%
C72431662.291868%
D72436438.877537%

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 7378 7245 377 377 5.11% 5.20%
B 7378 7245 7 7 0.09% 0.10%
C 7378 7245 80 80 1.08% 1.10%
D 7378 7245 485 485 6.57% 6.69%

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 0 31 800300 4694.27 824 805 170.3
A 0 13 598204 3507.66 824 805 170.3
A 0 118 259020 1516.12 824 805 170.3
B 15 204 165443 991.65 851 829 166.0
B 8 3 131676 788.23 851 829 166.0
B 4 169 42913 253.52 851 829 166.0
C 9 247 753871 3886.6 823 827 193.8
C 9 54 343603 1769.13 823 827 193.8
C 14 48 30920 155.32 823 827 193.8
D 14 34 1057358 5307.15 805 778 199.1
D 13 53 910153 4567.74 805 778 199.1
D 13 235 254832 1276.1 805 778 199.1

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