ASTROSAT CZTI

Data Quality Report

Orbit 46992

Creation date: 2024-06-27T23:30:24.778365
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_071T08_9000006292_46992cztM0_level2.fits modeM0/AS1A13_071T08_9000006292_46992cztM0_level2_quad_clean.evt
Size (bytes)466,796,16048,548,160
Size445.2 MB 46.3 MB
Events in quadrant A3,458,018394,765
Events in quadrant B8,879,15076,072
Events in quadrant C1,690,668393,512
Events in quadrant D2,951,071333,824

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127210
B0290220
C079540
D0114530

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3849120.311769%
B3850330185.740260%
C3850170.441558%
D38503458.961039%

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 3849 3849 1 1 0.03% 0.03%
B 3850 3850 3156 3156 81.97% 81.97%
C 3850 3850 17 17 0.44% 0.44%
D 3850 3850 329 329 8.55% 8.55%

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 1845207 21301.97 407 398 86.6
A 9 191 16871 190.21 407 398 86.6
A 0 243 10756 119.6 407 398 86.6
B 3 112 7767789 157961.2 246 238 49.2
B 5 255 92268 1871.53 246 238 49.2
B 0 183 16143 323.44 246 238 49.2
C 14 254 75012 779.56 401 403 95.7
C 12 2 33294 343.67 401 403 95.7
C 15 208 9582 95.91 401 403 95.7
D 2 249 631851 6449.3 386 374 97.9
D 1 52 584038 5960.98 386 374 97.9
D 13 249 169629 1728.6 386 374 97.9

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