ASTROSAT CZTI

Data Quality Report

Orbit 40209

Creation date: 2024-06-27T22:13:36.996372
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_001T01_9000005532_40209cztM0_level2.fits modeM0/AS1C07_001T01_9000005532_40209cztM0_level2_quad_clean.evt
Size (bytes)66,974,40017,850,240
Size63.9 MB 17.0 MB
Events in quadrant A671,257119,006
Events in quadrant B519,173122,991
Events in quadrant C554,377114,724
Events in quadrant D650,511104,838

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026582
B021561
C022421
D026221

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A103580.772947%
B103540.386473%
C103550.483092%
D1035272.608696%

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 1035 1035 2 2 0.19% 0.19%
B 1035 1035 1 1 0.10% 0.10%
C 1035 1035 2 2 0.19% 0.19%
D 1035 1035 19 19 1.84% 1.84%

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 153046 5591.56 123 120 27.3
A 13 248 36090 1315.2 123 120 27.3
A 13 6 1729 58.83 123 120 27.3
B 5 255 23282 910.25 121 118 25.4
B 4 171 7359 284.54 121 118 25.4
B 0 245 5148 197.66 121 118 25.4
C 15 214 48166 1654.48 118 118 29.0
C 10 20 22243 761.85 118 118 29.0
C 0 10 13466 459.62 118 118 29.0
D 12 227 158361 5101.86 118 114 31.0
D 13 249 7781 247.18 118 114 31.0
D 5 171 6565 207.98 118 114 31.0

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