NASA.GOV METEORITE LANDINGS
Description of Data Set: Title: “Meteorite Landings”
From the data source NASA.Gov: “This comprehensive data set from The Meteoritical Society contains information on all of the known meteorite landings. The Fusion Table is collected by Javier de la Torre and we’ve also provided an XLS file that consists of 34,513 meteorites.”
Fields:
place
type_of_meteorite
mass_g
fell_found
year
database
coordinate_1
coordinates_2
cartodb_id
created_at
updated_at year_date
longitude
latitude
geojson
str() Function of Dataset
## ‘data.frame’: 45716 obs. of 10 variables:
## $ name : chr “Aachen” “Aarhus” “Abee” “Acapulco” … ## $ id : int 1 2 6 10 370 379 390 392 398 417 …
## $ nametype : chr “Valid” “Valid” “Valid” “Valid” … ## $ recclass : chr “L5” “H6” “EH4” “Acapulcoite” … ## $ mass..g. : num 21 720 107000 1914 780 …
## $ fall : chr “Fell” “Fell” “Fell” “Fell” …
## $ year : int 1880 1951 1952 1976 1902 1919 1949 1814 1930 1920 …
## $ reclat : num 50.8 56.2 54.2 16.9 -33.2 …
## $ reclong : num 6.08 10.23 -113 -99.9 -64.95 …
## $ GeoLocation: chr “(50.775, 6.08333)” “(56.18333, 10.23333)” “(54.21667, -113.0)” “(16.88333, -99
The above code reads the “Meteorite Landings” dataset and utilizes the str() function to inspect the variables in the dataframe, according to their types and names, as well as the overall number of variables and observations.
Distribution Plot of Year of Meteorite Landings
Single Dimension Plot of Fall Variable
Single Dimension Plot of Mass of Meteorites
Above, there are a couple of scatter plots illustrating mass in grams, offering insight into the variable Mass (in grams), inclusive of outlier and average values.
Multidimensional Plot of Mass of Meteorites
Multidimensional Plot
NASA continues to track meteorites across geos, mass and found/fell statistics.
“NASA’s Near Earth Object Program was established in 1998 to coordinate NASA-sponsored efforts to detect, track and characterize potentially hazardous asteroids and comets that could approach the Earth.
To better organize U.S. efforts to track asteroids that might one day threaten Earth, NASA established the Planetary Defense Coordination Office (PDCO) in 2016. The PDCO:
Provides early detection of potentially hazardous objects (PHOs) — the subset of NEOs whose orbits predict they will come within 5 million miles of Earth’s orbit, and of a size large enough (30 to 50 meters) to cause significant damage on Earth.
Tracks and characterizes PHOs and issues warnings of the possible effects of potential impacts.
Studies strategies and technologies for mitigating PHO impacts.
Plays a lead role in coordinating U.S. government planning for response to an actual impact threat.
To date, NASA-sponsored NEO surveys have provided over 95% of all near-Earth object discoveries.
