ASTROSAT CZTI

Data Quality Report

Orbit 13183

Creation date: 2024-06-27T16:37:27.128323
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/AS1T02_012T06_9000001956_13183cztM0_level2.evt modeM0/AS1T02_012T06_9000001956_13183cztM0_level2_quad_clean.evt
Size (bytes)22,587,8404,561,920
Size21.5 MB 4.4 MB
Events in quadrant A104,05830,505
Events in quadrant B326,39523,147
Events in quadrant C110,06030,285
Events in quadrant D124,36229,180

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04631
B011230
C04710
D05170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23100.000000%
B2319340.259740%
C23100.000000%
D23100.000000%

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 232 232 0 0 0.00% 0.00%
B 232 232 64 64 27.59% 27.59%
C 232 232 0 0 0.00% 0.00%
D 232 232 0 0 0.00% 0.00%

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 15 239 241 28.66 26 26 7.5
A 0 226 221 25.99 26 26 7.5
A 12 194 197 22.79 26 26 7.5
B 4 239 240264 40805.52 20 20 5.9
B 0 214 2599 438.04 20 20 5.9
B 0 189 2046 344.12 20 20 5.9
C 15 208 4101 490.83 27 27 8.3
C 13 61 180 18.43 27 27 8.3
C 12 4 130 12.41 27 27 8.3
D 13 122 15640 1896.84 26 25 8.2
D 1 52 5082 614.3 26 25 8.2
D 14 34 1766 211.49 26 25 8.2

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