ASTROSAT CZTI

Data Quality Report

Orbit 43368

Creation date: 2024-06-27T22:51:07.351460
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/AS1A09_143T01_9000005870_43368cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43368cztM0_level2_quad_clean.evt
Size (bytes)321,232,32091,886,400
Size306.4 MB 87.6 MB
Events in quadrant A3,241,872609,511
Events in quadrant B2,649,551628,054
Events in quadrant C2,789,053601,211
Events in quadrant D2,776,021553,442

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130842
B0115142
C0117882
D0123202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5575811.452915%
B5575160.286996%
C5574350.627915%
D5574420.753498%

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 7246 5576 68 68 0.94% 1.22%
B 7246 5576 6 6 0.08% 0.11%
C 7245 5575 30 30 0.41% 0.54%
D 7245 5575 41 41 0.57% 0.74%

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 622392 4898.21 608 594 126.9
A 15 237 229273 1801.42 608 594 126.9
A 13 248 14707 111.18 608 594 126.9
B 0 189 87185 732.81 608 591 118.2
B 3 112 71457 599.71 608 591 118.2
B 0 245 33734 280.48 608 591 118.2
C 15 214 229781 1610.0 601 603 142.3
C 15 111 73248 510.34 601 603 142.3
C 0 239 59936 416.82 601 603 142.3
D 12 218 101720 689.57 599 581 146.7
D 5 32 89426 605.75 599 581 146.7
D 12 233 74351 502.96 599 581 146.7

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