ASTROSAT CZTI

Data Quality Report

Orbit 03163

Creation date: 2024-06-27T14:25:24.867552
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/AS1G05_218T02_9000000434_03163cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03163cztM0_level2_quad_clean.evt
Size (bytes)870,065,280173,528,640
Size829.8 MB 165.5 MB
Events in quadrant A5,944,3601,102,196
Events in quadrant B6,098,4301,113,395
Events in quadrant C6,715,9711,082,868
Events in quadrant D6,714,7181,062,744

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02620
B02620
C02620
D02620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271374
B0272073
C0291813
D0294313

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129431521.174380%
B12943990.764892%
C129433082.379665%
D129442231.722806%

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 14148 12945 30 30 0.21% 0.23%
B 14148 12945 23 23 0.16% 0.18%
C 14148 12945 196 196 1.39% 1.51%
D 14149 12946 145 145 1.02% 1.12%

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 0 199 220000 750.07 1432 1397 291.4
A 12 247 62373 209.22 1432 1397 291.4
A 0 226 38634 127.77 1432 1397 291.4
B 2 249 92045 322.04 1470 1432 281.4
B 14 167 72926 254.09 1470 1432 281.4
B 15 85 58466 202.7 1470 1432 281.4
C 14 223 611253 1876.84 1395 1400 324.9
C 15 208 402953 1235.79 1395 1400 324.9
C 1 16 87704 265.6 1395 1400 324.9
D 13 223 299238 884.45 1401 1358 336.8
D 2 136 278764 823.66 1401 1358 336.8
D 5 233 221385 653.29 1401 1358 336.8

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