ASTROSAT CZTI

Data Quality Report

Orbit 47006

Creation date: 2024-06-27T23:30:37.939212
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/AS1C09_006T01_9000006294_47006cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47006cztM0_level2_quad_clean.evt
Size (bytes)628,456,320103,340,160
Size599.3 MB 98.6 MB
Events in quadrant A6,657,903704,399
Events in quadrant B8,384,401584,745
Events in quadrant C3,300,644714,553
Events in quadrant D4,389,483647,406

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243402
B0295952
C0148532
D0178042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68572123.091731%
B6857176125.681785%
C6857670.977104%
D68572403.500073%

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 7747 6858 16 16 0.21% 0.23%
B 7747 6858 1260 1260 16.26% 18.37%
C 7747 6858 41 41 0.53% 0.60%
D 7747 6858 199 199 2.57% 2.90%

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 3590782 22793.24 754 735 157.5
A 9 191 140705 888.67 754 735 157.5
A 13 254 10958 64.91 754 735 157.5
B 3 112 5210048 37416.9 706 685 139.2
B 4 171 277743 1990.0 706 685 139.2
B 0 190 23238 161.99 706 685 139.2
C 14 254 291912 1638.36 751 756 177.7
C 3 233 68242 379.75 751 756 177.7
C 11 16 9067 46.77 751 756 177.7
D 13 249 659589 3540.15 737 715 186.1
D 1 52 633435 3399.62 737 715 186.1
D 13 171 128033 684.08 737 715 186.1

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