ASTROSAT CZTI

Data Quality Report

Orbit 30381

Creation date: 2024-06-27T20:14:31.078327
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/AS1T04_006T01_9000004370_30381cztM0_level2.evt modeM0/AS1T04_006T01_9000004370_30381cztM0_level2_quad_clean.evt
Size (bytes)584,095,68088,793,280
Size557.0 MB 84.7 MB
Events in quadrant A3,672,319575,374
Events in quadrant B5,788,507572,744
Events in quadrant C3,451,076550,955
Events in quadrant D4,344,669543,670

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151942
B0215872
C0142292
D0171122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63951602.501955%
B63953625.660672%
C63951292.017201%
D63952373.706020%

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 7585 6395 58 58 0.76% 0.91%
B 7585 6395 82 82 1.08% 1.28%
C 7585 6395 0 0 0.00% 0.00%
D 7585 6395 168 168 2.21% 2.63%

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 14 239 244078 1398.16 871 859 174.0
A 8 192 27779 154.75 871 859 174.0
A 12 96 17607 96.28 871 859 174.0
B 6 159 1902834 11765.3 856 837 161.7
B 5 255 350597 2163.53 856 837 161.7
B 0 190 57944 353.25 856 837 161.7
C 14 238 138408 720.72 829 839 190.9
C 3 233 56134 289.69 829 839 190.9
C 2 114 15540 77.02 829 839 190.9
D 13 104 440204 2274.63 825 808 193.2
D 13 138 243637 1257.06 825 808 193.2
D 8 195 175258 903.08 825 808 193.2

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