ASTROSAT CZTI

Data Quality Report

Orbit 47582

Creation date: 2024-07-16T06:34:51.734552
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_080T03_9000006336_47582cztM0_level2.fits modeM0/AS1A13_080T03_9000006336_47582cztM0_level2_quad_clean.evt
Size (bytes)1,000,944,000118,486,080
Size954.6 MB 113.0 MB
Events in quadrant A9,464,283896,147
Events in quadrant B4,265,849931,258
Events in quadrant C3,615,022902,915
Events in quadrant D19,048,210265,646

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0338600
B0184490
C0171420
D0624195

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85145065.943152%
B8515861.009982%
C851530.035232%
D8514601670.660089%

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 8514 8514 231 231 2.71% 2.71%
B 8515 8515 36 36 0.42% 0.42%
C 8514 8514 1 1 0.01% 0.01%
D 8513 8513 6021 6021 70.73% 70.73%

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 4491339 23194.36 928 905 193.6
A 9 191 1205139 6220.21 928 905 193.6
A 13 248 141412 725.76 928 905 193.6
B 0 200 242707 1307.93 941 912 184.9
B 5 172 123784 664.64 941 912 184.9
B 0 190 39524 208.86 941 912 184.9
C 14 254 12638 54.17 922 925 216.2
C 12 250 6493 25.75 922 925 216.2
C 13 61 6160 24.21 922 925 216.2
D 2 165 16417228 120210.71 536 514 136.6
D 2 249 306259 2238.8 536 514 136.6
D 4 222 55475 402.45 536 514 136.6

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