ASTROSAT CZTI

Data Quality Report

Orbit 47609

Creation date: 2024-07-18T01:37:53.296828
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/AS1A13_071T01_9000006340_47609cztM0_level2.fits modeM0/AS1A13_071T01_9000006340_47609cztM0_level2_quad_clean.evt
Size (bytes)565,548,480115,240,320
Size539.3 MB 109.9 MB
Events in quadrant A8,152,080749,571
Events in quadrant B4,032,402786,743
Events in quadrant C3,269,971770,502
Events in quadrant D4,913,673673,567

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0297172
B0169842
C0151482
D0197742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73124946.756018%
B73132363.227130%
C7313180.246137%
D73134686.399562%

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 7697 7313 90 90 1.17% 1.23%
B 7698 7314 93 93 1.21% 1.27%
C 7698 7314 0 0 0.00% 0.00%
D 7698 7314 337 337 4.38% 4.61%

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 4160666 24632.75 811 794 168.9
A 9 191 440598 2604.31 811 794 168.9
A 13 248 209740 1237.28 811 794 168.9
B 12 48 372755 2318.04 812 786 160.5
B 0 200 171933 1066.56 812 786 160.5
B 5 32 116160 718.99 812 786 160.5
C 3 233 117811 619.4 801 802 188.9
C 15 208 10012 48.75 801 802 188.9
C 0 207 9309 45.03 801 802 188.9
D 12 2 699183 3559.26 785 759 196.2
D 2 249 568124 2891.37 785 759 196.2
D 13 171 151290 767.13 785 759 196.2

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