ASTROSAT CZTI

Data Quality Report

Orbit 45870

Creation date: 2024-06-27T23:17:08.401245
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_034T01_9000006134_45870cztM0_level2.fits modeM0/AS1A13_034T01_9000006134_45870cztM0_level2_quad_clean.evt
Size (bytes)862,669,44098,470,080
Size822.7 MB 93.9 MB
Events in quadrant A6,459,136785,084
Events in quadrant B15,709,225230,060
Events in quadrant C3,230,295789,550
Events in quadrant D5,954,851656,612

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236450
B0517930
C0153420
D0228200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74741331.779502%
B7474586478.458657%
C747480.107038%
D747577110.314381%

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 7474 7474 14 14 0.19% 0.19%
B 7473 7473 4253 4253 56.91% 56.91%
C 7474 7474 0 0 0.00% 0.00%
D 7475 7475 569 569 7.61% 7.61%

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 3113626 17805.94 836 817 174.8
A 0 247 60265 340.06 836 817 174.8
A 14 235 17280 94.17 836 817 174.8
B 3 112 12966871 110610.82 590 571 117.2
B 4 171 119791 1017.02 590 571 117.2
B 0 183 52896 446.37 590 571 117.2
C 12 2 11334 54.09 823 826 194.3
C 3 233 10408 49.32 823 826 194.3
C 13 61 5669 24.93 823 826 194.3
D 2 249 1067048 5310.7 791 765 200.8
D 13 249 598745 2978.28 791 765 200.8
D 1 52 362735 1802.82 791 765 200.8

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