EarthOrbit

Access to Astronomical Solutions for Earth Paleoclimates. There are three researches (in 1993, 2004, and 2010) about earth orbital parameters’ data. This service only uses the 2004 data.

For more information, check out http://vo.imcce.fr/insola/earth/online/earth/earth.html.

Original datasets are available at:

• http://vo.imcce.fr/insola/earth/online/earth/La2004/INSOLN.LA2004.BTL.100.ASC

• http://vo.imcce.fr/insola/earth/online/earth/La2004/INSOLN.LA2004.BTL.250.ASC

• http://vo.imcce.fr/insola/earth/online/earth/La2004/INSOLN.LA2004.BTL.ASC

• http://vo.imcce.fr/insola/earth/online/earth/La2004/INSOLP.LA2004.BTL.ASC

• http://vo.imcce.fr/webservices/miriade/proxy.php?file=http://145.238.217.35//tmp/insola/insolaouto7Yk3u&format=text

• http://vo.imcce.fr/webservices/miriade/proxy.php?file=http://145.238.217.38//tmp/insola/insolaouteXT96X&format=text

RPCS

EarthOrbit.getEccentricity(startyear: Number?, endyear: Number?)

Get eccentricity by year. For more information about eccentricity, please visit: https://climate.nasa.gov/news/2948/milankovitch-orbital-cycles-and-their-role-in-earths-climate/

If startyear or endyear is provided, only measurements within the given range will be returned.

Arguments:

• startyear: Number? (Number) - first year of data to include

• endyear: Number? (Number) - last year of data to include

Returns: List (List) - list of historical eccentricity values for each year

EarthOrbit.getInsolation(startyear: Number?, endyear: Number?)

Get insolation by year. Insolation here is the amount of solar radiation received at 65 N in June on Earth.

If startyear or endyear is provided, only measurements within the given range will be returned.

Arguments:

• startyear: Number? (Number) - first year of data to include

• endyear: Number? (Number) - last year of data to include

Returns: List (List) - list of historical insolation values for each year

EarthOrbit.getLongitude(startyear: Number?, endyear: Number?)

Get longitude of perihelion from moving equinox by year. For more information about this, please visit: https://www.physics.ncsu.edu/classes/astron/orbits.html

If startyear or endyear is provided, only measurements within the given range will be returned.

Arguments:

• startyear: Number? (Number) - first year of data to include

• endyear: Number? (Number) - last year of data to include

Returns: List (List) - longitude - longitude of perihelion from moving equinox

EarthOrbit.getObliquity(startyear: Number?, endyear: Number?)

Get obliquity by year. For more information about obliquity, please visit: https://climate.nasa.gov/news/2948/milankovitch-orbital-cycles-and-their-role-in-earths-climate/

If startyear or endyear is provided, only measurements within the given range will be returned.

Arguments:

• startyear: Number? (Number) - first year of data to include

• endyear: Number? (Number) - last year of data to include

Returns: List (List) - list of historical obliquity values for each year

EarthOrbit.getPrecession(startyear: Number?, endyear: Number?)

Get precession by year. For more information about precession, please visit: https://climate.nasa.gov/news/2948/milankovitch-orbital-cycles-and-their-role-in-earths-climate/

If startyear or endyear is provided, only measurements within the given range will be returned.

Arguments:

• startyear: Number? (Number) - first year of data to include

• endyear: Number? (Number) - last year of data to include

Returns: List (List) - list of historical precession values for each year