ASTROSAT CZTI

Data Quality Report

Orbit 29214

Creation date: 2024-06-27T20:01:37.091055
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/AS1A10_102T02_9000004200_29214cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29214cztM0_level2_quad_clean.evt
Size (bytes)694,491,840105,874,560
Size662.3 MB 101.0 MB
Events in quadrant A3,348,573714,736
Events in quadrant B4,168,018715,494
Events in quadrant C3,978,813700,430
Events in quadrant D9,062,861586,755

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144840
B0169900
C0163770
D0317920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7013590.841295%
B70141862.651839%
C70141992.837183%
D7014182325.990875%

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 7483 7015 0 0 0.00% 0.00%
B 7484 7016 59 59 0.79% 0.84%
C 7484 7016 0 0 0.00% 0.00%
D 7484 7016 1492 1492 19.94% 21.27%

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 0 13 25540 144.57 851 834 170.9
A 15 174 23933 135.17 851 834 170.9
A 13 254 15361 85.01 851 834 170.9
B 10 245 630878 3943.59 843 820 159.8
B 0 229 102257 634.9 843 820 159.8
B 0 183 64886 400.99 843 820 159.8
C 3 233 572384 2993.91 819 827 190.9
C 14 238 136680 711.62 819 827 190.9
C 10 9 58324 301.18 819 827 190.9
D 1 52 4404845 25115.2 738 718 175.4
D 13 104 1093813 6233.54 738 718 175.4
D 8 195 583348 3322.54 738 718 175.4

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