ASTROSAT CZTI

Data Quality Report

Orbit 44073

Creation date: 2024-06-27T22:59:04.019534
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_029T01_9000005940_44073cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44073cztM0_level2_quad_clean.evt
Size (bytes)489,994,560125,400,960
Size467.3 MB 119.6 MB
Events in quadrant A5,861,991835,166
Events in quadrant B3,474,127869,891
Events in quadrant C3,655,484813,147
Events in quadrant D4,546,050740,709

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237160
B0158750
C0163960
D0188200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7732580.750129%
B773270.090533%
C7733350.452606%
D77331642.120781%

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 7732 7732 27 27 0.35% 0.35%
B 7732 7732 0 0 0.00% 0.00%
C 7733 7733 21 21 0.27% 0.27%
D 7733 7733 120 120 1.55% 1.55%

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 1133714 6158.73 879 860 183.9
A 15 222 1023963 5562.07 879 860 183.9
A 15 223 192173 1040.07 879 860 183.9
B 12 111 23380 127.64 879 850 176.5
B 11 111 21148 114.99 879 850 176.5
B 14 111 21120 114.83 879 850 176.5
C 14 254 136859 660.6 868 872 205.9
C 4 254 44574 212.3 868 872 205.9
C 15 157 36493 173.04 868 872 205.9
D 13 249 363320 1683.03 857 831 215.4
D 5 235 293191 1357.42 857 831 215.4
D 1 52 276536 1280.09 857 831 215.4

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