ASTROSAT CZTI

Data Quality Report

Orbit 09403

Creation date: 2024-06-27T15:45:36.910080
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/AS1G07_044T09_9000001334_09403cztM0_level2.evt modeM0/AS1G07_044T09_9000001334_09403cztM0_level2_quad_clean.evt
Size (bytes)468,679,68083,496,960
Size447.0 MB 79.6 MB
Events in quadrant A3,708,399518,389
Events in quadrant B3,228,523522,243
Events in quadrant C3,503,031516,376
Events in quadrant D3,300,448506,047

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152038
B0138052
C0148982
D0142604

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66731211.813277%
B6675841.258427%
C66751722.576779%
D66741021.528319%

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 7645 6676 14 14 0.18% 0.21%
B 7645 6676 2 2 0.03% 0.03%
C 7645 6676 67 67 0.88% 1.00%
D 7645 6676 22 22 0.29% 0.33%

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 531849 3232.25 805 785 164.3
A 13 251 22554 132.49 805 785 164.3
A 1 162 21288 124.79 805 785 164.3
B 0 219 45983 293.19 805 782 154.2
B 0 214 38193 242.66 805 782 154.2
B 12 111 17099 105.84 805 782 154.2
C 4 254 475808 2646.48 775 777 179.5
C 13 61 5710 27.48 775 777 179.5
C 8 222 2268 8.31 775 777 179.5
D 8 195 106146 556.58 779 758 189.3
D 1 52 88768 464.8 779 758 189.3
D 7 71 64085 334.44 779 758 189.3

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