ASTROSAT CZTI

Data Quality Report

Orbit 23524

Creation date: 2024-06-27T18:55:41.834973
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/AS1A07_011T01_9000003482_23524cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23524cztM0_level2_quad_clean.evt
Size (bytes)460,523,52087,857,280
Size439.2 MB 83.8 MB
Events in quadrant A2,987,525568,004
Events in quadrant B3,746,582566,771
Events in quadrant C3,079,674546,939
Events in quadrant D3,703,665537,661

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128531
B0150991
C0130811
D0151781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6322671.059791%
B63231462.309031%
C6323931.470821%
D63232013.178871%

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 7172 6322 0 0 0.00% 0.00%
B 7173 6323 49 49 0.68% 0.77%
C 7173 6323 4 4 0.06% 0.06%
D 7173 6323 163 163 2.27% 2.58%

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 13 254 11180 67.03 774 759 155.5
A 0 226 6747 38.51 774 759 155.5
A 3 137 6542 37.2 774 759 155.5
B 0 189 594208 4162.3 758 741 142.6
B 15 33 38484 264.71 758 741 142.6
B 0 229 38009 261.38 758 741 142.6
C 14 238 117740 690.07 732 735 169.6
C 2 16 53860 313.32 732 735 169.6
C 0 207 42967 249.07 732 735 169.6
D 1 52 811386 4490.31 745 723 180.5
D 2 234 27744 149.67 745 723 180.5
D 8 195 11823 61.48 745 723 180.5

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