ASTROSAT CZTI

Data Quality Report

Orbit 01145

Creation date: 2024-06-27T14:08:12.338683
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/AS1P01_997T03_9000000216_01145cztM0_level2.evt modeM0/AS1P01_997T03_9000000216_01145cztM0_level2_quad_clean.evt
Size (bytes)499,366,08050,725,440
Size476.2 MB 48.4 MB
Events in quadrant A3,725,038336,295
Events in quadrant B3,837,522335,121
Events in quadrant C3,769,166314,408
Events in quadrant D3,568,261313,649

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134211
B0137370
C0135450
D0129530

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A332600.000000%
B332640.120265%
C332610.030066%
D332690.270595%

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 3326 3326 18 18 0.54% 0.54%
B 3326 3326 33 33 0.99% 0.99%
C 3326 3326 32 32 0.96% 0.96%
D 3326 3326 92 92 2.77% 2.77%

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 15 127 11134 43.64 967 973 232.9
A 11 79 3307 10.02 967 973 232.9
A 12 243 2989 8.66 967 973 232.9
B 15 22 48985 207.47 975 981 231.4
B 0 220 23995 99.46 975 981 231.4
B 15 85 14856 59.97 975 981 231.4
C 15 241 158402 638.94 890 921 246.5
C 12 206 54585 217.73 890 921 246.5
C 9 83 50755 202.19 890 921 246.5
D 1 239 135113 490.24 894 925 273.7
D 10 85 34169 121.45 894 925 273.7
D 13 252 18110 62.78 894 925 273.7

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