ASTROSAT CZTI

Data Quality Report

Orbit 10214

Creation date: 2024-06-27T15:56:27.932106
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/AS1A03_099T01_9000001472_10214cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10214cztM0_level2_quad_clean.evt
Size (bytes)455,034,24065,805,120
Size434.0 MB 62.8 MB
Events in quadrant A3,305,695390,942
Events in quadrant B3,502,269386,179
Events in quadrant C2,993,056389,515
Events in quadrant D3,539,411373,631

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141303
B0144834
C0132792
D0144792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6479701.080414%
B6478911.404755%
C6479380.586510%
D6479701.080414%

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 7564 6479 19 19 0.25% 0.29%
B 7564 6479 35 35 0.46% 0.54%
C 7564 6479 0 0 0.00% 0.00%
D 7564 6479 24 24 0.32% 0.37%

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 8 15 118798 742.86 787 771 158.9
A 15 223 78105 486.74 787 771 158.9
A 15 239 31456 193.13 787 771 158.9
B 4 239 232867 1544.97 790 772 150.2
B 0 214 126096 834.24 790 772 150.2
B 11 51 61191 402.19 790 772 150.2
C 13 61 5706 27.91 766 770 176.8
C 14 234 2853 11.78 766 770 176.8
C 0 207 2472 9.62 766 770 176.8
D 8 195 386039 1926.58 753 738 200.0
D 1 52 86170 427.18 753 738 200.0
D 2 16 44530 218.97 753 738 200.0

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