ASTROSAT CZTI

Data Quality Report

Orbit 11393

Creation date: 2024-06-27T16:12:17.366885
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/AS1A04_022T03_9000001664_11393cztM0_level2.evt modeM0/AS1A04_022T03_9000001664_11393cztM0_level2_quad_clean.evt
Size (bytes)80,233,92017,510,400
Size76.5 MB 16.7 MB
Events in quadrant A508,495115,777
Events in quadrant B681,021114,434
Events in quadrant C429,513124,921
Events in quadrant D752,352110,093

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019951
B025761
C017281
D027991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A819354.273504%
B8198210.012210%
C81920.244200%
D819718.669109%

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 819 819 14 14 1.71% 1.71%
B 819 819 25 25 3.05% 3.05%
C 819 819 0 0 0.00% 0.00%
D 819 819 42 42 5.13% 5.13%

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 91070 3788.7 107 105 24.0
A 0 226 993 36.99 107 105 24.0
A 12 194 930 34.36 107 105 24.0
B 4 239 239426 10980.96 104 102 21.8
B 15 204 17984 820.48 104 102 21.8
B 11 51 7862 356.05 104 102 21.8
C 13 61 849 26.67 110 110 27.7
C 7 159 335 8.12 110 110 27.7
C 14 67 256 5.27 110 110 27.7
D 14 34 239666 8911.62 105 102 26.9
D 1 52 59106 2194.91 105 102 26.9
D 2 120 21280 787.81 105 102 26.9

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