ASTROSAT CZTI

Data Quality Report

Orbit 23167

Creation date: 2024-06-27T18:50:46.960692
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/AS1A08_009T01_9000003422_23167cztM0_level2.evt modeM0/AS1A08_009T01_9000003422_23167cztM0_level2_quad_clean.evt
Size (bytes)263,070,72052,416,000
Size250.9 MB 50.0 MB
Events in quadrant A1,876,059324,162
Events in quadrant B1,936,301329,905
Events in quadrant C2,025,802318,519
Events in quadrant D1,838,712315,366

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085140
B086020
C086760
D085700

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A424710.023546%
B424820.047081%
C4248200.470810%
D424870.164783%

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 4247 4247 0 0 0.00% 0.00%
B 4248 4248 0 0 0.00% 0.00%
C 4248 4248 0 0 0.00% 0.00%
D 4248 4248 4 4 0.09% 0.09%

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 13 254 6032 56.33 486 476 98.6
A 3 137 4342 39.2 486 476 98.6
A 0 226 4118 36.93 486 476 98.6
B 0 190 29049 307.77 483 470 92.9
B 12 111 11222 115.79 483 470 92.9
B 11 111 10241 105.22 483 470 92.9
C 0 10 86583 784.62 467 468 109.8
C 14 238 74388 673.51 467 468 109.8
C 8 208 41651 375.23 467 468 109.8
D 2 234 19000 158.21 475 460 117.2
D 1 52 12629 103.84 475 460 117.2
D 8 195 11482 94.05 475 460 117.2

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