ASTROSAT CZTI

Data Quality Report

Orbit 45765

Creation date: 2024-06-27T23:15:55.492787
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/AS1T05_183T01_9000006124_45765cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45765cztM0_level2_quad_clean.evt
Size (bytes)636,969,600102,899,520
Size607.5 MB 98.1 MB
Events in quadrant A5,969,905722,774
Events in quadrant B7,468,083628,995
Events in quadrant C3,888,230716,754
Events in quadrant D5,773,986615,464

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215111
B0265761
C0155401
D0213071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61802864.627832%
B6181141322.860379%
C61812954.772691%
D618174912.117780%

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 7320 6181 38 38 0.52% 0.61%
B 7321 6181 829 829 11.32% 13.41%
C 7321 6182 179 179 2.45% 2.90%
D 7321 6182 539 539 7.36% 8.72%

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 2747005 17373.98 752 736 158.1
A 13 248 198867 1253.45 752 736 158.1
A 14 235 87784 550.7 752 736 158.1
B 3 112 2524692 18536.96 697 677 136.2
B 12 18 1214292 8913.07 697 677 136.2
B 5 172 323404 2370.18 697 677 136.2
C 14 254 563341 3317.24 726 733 169.6
C 14 96 373289 2196.66 726 733 169.6
C 3 233 63292 368.86 726 733 169.6
D 1 52 1641714 9151.23 717 697 179.3
D 13 249 531745 2961.42 717 697 179.3
D 1 47 258954 1440.19 717 697 179.3

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