ASTROSAT CZTI

Data Quality Report

Orbit 19322

Creation date: 2024-06-27T18:01:22.828877
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_204T01_9000002856_19322cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19322cztM0_level2_quad_clean.evt
Size (bytes)530,389,440110,329,920
Size505.8 MB 105.2 MB
Events in quadrant A3,475,727756,088
Events in quadrant B3,563,048757,390
Events in quadrant C3,419,721715,792
Events in quadrant D5,174,685670,123

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144782
B0147702
C0142002
D0196492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6335861.357537%
B6335941.483820%
C63351171.846882%
D633574911.823204%

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 7625 6335 6 6 0.08% 0.09%
B 7625 6335 13 13 0.17% 0.21%
C 7625 6335 0 0 0.00% 0.00%
D 7625 6335 621 621 8.14% 9.80%

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 5 16 16678 89.87 890 874 175.8
A 11 29 12926 68.54 890 874 175.8
A 9 143 11191 58.67 890 874 175.8
B 3 64 34680 209.65 866 847 161.4
B 0 190 28172 169.32 866 847 161.4
B 0 229 27543 165.42 866 847 161.4
C 14 238 133561 692.3 835 842 191.7
C 3 233 32543 165.36 835 842 191.7
C 13 61 5874 26.25 835 842 191.7
D 1 52 1226895 6206.5 821 798 197.6
D 7 238 525572 2656.4 821 798 197.6
D 11 176 276982 1398.04 821 798 197.6

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