ASTROSAT CZTI

Data Quality Report

Orbit 46965

Creation date: 2024-06-27T23:30:02.951837
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/AS1A13_071T07_9000006290_46965cztM0_level2.fits modeM0/AS1A13_071T07_9000006290_46965cztM0_level2_quad_clean.evt
Size (bytes)564,690,240106,511,040
Size538.5 MB 101.6 MB
Events in quadrant A6,325,397715,341
Events in quadrant B6,026,135708,437
Events in quadrant C3,078,970712,753
Events in quadrant D4,965,858632,285

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228701
B0223321
C0138051
D0192633

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65431942.965001%
B65436009.170105%
C6544711.084963%
D65433976.067553%

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 7578 6544 19 19 0.25% 0.29%
B 7578 6544 381 381 5.03% 5.82%
C 7579 6545 12 12 0.16% 0.18%
D 7578 6544 263 263 3.47% 4.02%

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 10 83 3414983 22819.08 728 714 149.6
A 14 248 76971 509.66 728 714 149.6
A 9 191 10814 67.5 728 714 149.6
B 3 112 2482167 18118.61 710 687 137.0
B 5 255 561305 4093.37 710 687 137.0
B 0 198 68349 494.04 710 687 137.0
C 15 208 134068 796.99 722 725 167.3
C 1 3 57262 337.92 722 725 167.3
C 14 254 40536 237.95 722 725 167.3
D 1 52 1134150 6376.24 714 691 177.8
D 13 249 713424 4009.46 714 691 177.8
D 2 249 147966 828.49 714 691 177.8

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