ASTROSAT CZTI

Data Quality Report

Orbit 18806

Creation date: 2024-06-27T17:54:56.358268
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/AS1A05_024T01_9000002810_18806cztM0_level2.evt modeM0/AS1A05_024T01_9000002810_18806cztM0_level2_quad_clean.evt
Size (bytes)127,719,36020,448,000
Size121.8 MB 19.5 MB
Events in quadrant A928,770119,889
Events in quadrant B982,892121,541
Events in quadrant C931,995117,524
Events in quadrant D887,717116,462

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039870
B041060
C040050
D039630

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A196460.305499%
B196540.203562%
C1965130.661578%
D196500.000000%

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 1964 1964 0 0 0.00% 0.00%
B 1965 1965 1 1 0.05% 0.05%
C 1965 1965 1 1 0.05% 0.05%
D 1965 1965 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 13 254 3146 57.68 240 234 50.5
A 8 144 2359 42.09 240 234 50.5
A 0 226 2171 38.37 240 234 50.5
B 6 36 13897 289.75 238 232 47.2
B 7 220 12610 262.46 238 232 47.2
B 0 197 11128 231.04 238 232 47.2
C 14 238 35258 645.59 226 226 54.3
C 9 54 11331 204.65 226 226 54.3
C 3 233 4491 78.6 226 226 54.3
D 2 234 9412 156.64 230 223 58.7
D 7 238 7211 119.12 230 223 58.7
D 14 34 4923 80.12 230 223 58.7

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