ASTROSAT CZTI

Data Quality Report

Orbit 09489

Creation date: 2024-06-27T15:46:44.592846
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/AS1A03_005T01_9000001348_09489cztM0_level2.evt modeM0/AS1A03_005T01_9000001348_09489cztM0_level2_quad_clean.evt
Size (bytes)139,668,48021,729,600
Size133.2 MB 20.7 MB
Events in quadrant A1,055,287120,719
Events in quadrant B979,157133,298
Events in quadrant C964,846129,337
Events in quadrant D1,079,754117,573

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102355812
B096535224
C096565273
D0114756908

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09652
B09664
C09644
D09644

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A212340.188413%
B221250.226040%
C218620.091491%
D205460.292113%

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 4838 3066 0 0 0.00% 0.00%
B 4838 3166 0 0 0.00% 0.00%
C 4843 3130 0 0 0.00% 0.00%
D 4844 2969 4 4 0.08% 0.13%

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 8 5 105738 2082.1 241 236 50.7
A 1 162 13348 258.77 241 236 50.7
A 1 178 3565 65.7 241 236 50.7
B 12 111 5753 108.84 252 246 50.6
B 11 111 4591 85.87 252 246 50.6
B 14 111 3694 68.14 252 246 50.6
C 9 68 15271 258.28 241 243 58.2
C 4 254 5626 92.52 241 243 58.2
C 13 61 1858 27.76 241 243 58.2
D 1 52 128520 2177.13 224 218 58.9
D 8 195 36911 622.64 224 218 58.9
D 13 104 32178 542.32 224 218 58.9

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