ASTROSAT CZTI

Data Quality Report

Orbit 47195

Creation date: 2024-06-27T23:32:43.086244
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_019T01_9000006302_47195cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47195cztM0_level2_quad_clean.evt
Size (bytes)519,808,320106,067,520
Size495.7 MB 101.2 MB
Events in quadrant A6,691,806691,597
Events in quadrant B3,778,547721,812
Events in quadrant C3,011,497699,504
Events in quadrant D5,243,814634,453

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241772
B0157872
C0138392
D0202772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66612523.783216%
B66611552.326978%
C6661290.435370%
D66611642.462093%

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 7651 6661 112 112 1.46% 1.68%
B 7651 6662 83 83 1.08% 1.25%
C 7651 6662 19 19 0.25% 0.29%
D 7651 6662 124 124 1.62% 1.86%

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 3792346 24806.72 731 716 152.8
A 9 191 41430 266.37 731 716 152.8
A 13 254 12458 76.82 731 716 152.8
B 0 200 328385 2245.82 736 712 145.9
B 0 190 280177 1915.41 736 712 145.9
B 15 201 148733 1014.51 736 712 145.9
C 14 254 96023 551.77 728 732 172.7
C 15 208 29954 169.2 728 732 172.7
C 10 20 21572 120.67 728 732 172.7
D 6 112 1655598 9082.98 718 692 182.2
D 12 233 514839 2821.9 718 692 182.2
D 1 47 73269 398.34 718 692 182.2

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