ASTROSAT CZTI

Data Quality Report

Orbit 25192

Creation date: 2024-06-27T19:14:55.192745
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/AS1A07_027T01_9000003690_25192cztM0_level2.evt modeM0/AS1A07_027T01_9000003690_25192cztM0_level2_quad_clean.evt
Size (bytes)524,393,280108,115,200
Size500.1 MB 103.1 MB
Events in quadrant A3,548,896697,508
Events in quadrant B3,637,258706,881
Events in quadrant C3,690,951675,090
Events in quadrant D4,488,668666,717

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155270
B0156590
C0156760
D0183170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7591750.988012%
B75911081.422737%
C75911752.305362%
D75911081.422737%

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 8011 7592 0 0 0.00% 0.00%
B 8011 7592 0 0 0.00% 0.00%
C 8011 7592 0 0 0.00% 0.00%
D 8011 7592 13 13 0.16% 0.17%

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 13 254 11728 58.26 920 898 185.9
A 3 137 8765 42.32 920 898 185.9
A 0 226 7790 37.08 920 898 185.9
B 12 111 21979 119.0 916 889 177.2
B 11 111 19910 107.33 916 889 177.2
B 3 64 19345 104.14 916 889 177.2
C 14 238 142119 674.59 887 890 209.4
C 7 247 38065 177.57 887 890 209.4
C 9 54 25285 116.52 887 890 209.4
D 8 195 573885 2643.18 897 869 216.8
D 12 235 396815 1826.4 897 869 216.8
D 12 233 40568 183.12 897 869 216.8

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