ASTROSAT CZTI

Data Quality Report

Orbit 25419

Creation date: 2024-06-27T19:17:27.403740
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/AS1A09_047T01_9000003714_25419cztM0_level2.evt modeM0/AS1A09_047T01_9000003714_25419cztM0_level2_quad_clean.evt
Size (bytes)582,102,720109,857,600
Size555.1 MB 104.8 MB
Events in quadrant A3,730,625754,351
Events in quadrant B3,421,572748,974
Events in quadrant C3,242,375718,189
Events in quadrant D6,815,017672,910

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148910
B0137940
C0134650
D0248070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61891592.569074%
B61901622.617124%
C61891662.682178%
D618969411.213443%

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 7389 6189 12 12 0.16% 0.19%
B 7390 6190 30 30 0.41% 0.48%
C 7389 6190 0 0 0.00% 0.00%
D 7389 6189 552 552 7.47% 8.92%

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 6 16 440091 2646.09 841 825 166.0
A 4 2 42465 250.84 841 825 166.0
A 13 254 9935 54.88 841 825 166.0
B 0 229 83789 541.35 815 798 153.3
B 15 33 69368 447.28 815 798 153.3
B 3 112 40933 261.8 815 798 153.3
C 14 238 127559 693.07 788 792 182.9
C 7 247 37758 202.1 788 792 182.9
C 2 16 7155 34.79 788 792 182.9
D 1 52 1896485 9951.01 789 768 190.5
D 7 238 848975 4452.42 789 768 190.5
D 8 195 529723 2776.6 789 768 190.5

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