ASTROSAT CZTI

Data Quality Report

Orbit 43530

Creation date: 2024-06-27T22:52:50.287589
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/AS1A12_102T01_9000005876_43530cztM0_level2.fits modeM0/AS1A12_102T01_9000005876_43530cztM0_level2_quad_clean.evt
Size (bytes)1,233,040,32060,958,080
Size1.1 GB 58.1 MB
Events in quadrant A10,425,943595,358
Events in quadrant B8,470,635669,412
Events in quadrant C15,754,182151,325
Events in quadrant D10,538,87810,235

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350911
B0293041
C0506721
D0354332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5893269445.715255%
B5893152525.878161%
C5893584499.168505%
D58925892100.000000%

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 7013 5893 2167 2167 30.90% 36.77%
B 7013 5894 1201 1201 17.13% 20.38%
C 7012 5892 5710 5710 81.43% 96.91%
D 7011 5891 2077 2077 29.62% 35.26%

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 15 222 4419411 37391.92 576 566 118.2
A 0 228 1291535 10924.08 576 566 118.2
A 0 227 747180 6317.79 576 566 118.2
B 3 42 3703799 31178.34 627 609 118.8
B 3 25 1390318 11700.4 627 609 118.8
B 0 219 238623 2003.92 627 609 118.8
C 15 126 7208179 186053.76 157 158 38.7
C 15 142 3016577 77859.94 157 158 38.7
C 15 174 2705604 69833.09 157 158 38.7
D 4 216 3488840 134808.54 35 32 25.9
D 4 201 1229681 47513.99 35 32 25.9
D 4 212 1171981 45284.44 35 32 25.9

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