Portal de Empleo
Correo Institucional

The Asteroid 2014 JO25

Quijano-Vodniza, Alberto Y Rojas P., Mario (2007) The Asteroid 2014 JO25. Bulletin of the American Astronomical Society, 49 (9). pp. 40-41. ISSN 0002-7537

[img] Text

Download (158kB)
URL Oficial:


The asteroid 2014 JO25 was discovered by A. D. Grauer at the Mt. Lemmon Survey on May 2014, and Joe Masiero used observations from the NEOWISE in 2014 to estimate a diameter of 650 meters [1]. However, using the radio telescope at Arecibo-Puerto Rico, astronomers obtained radar images on April 17-2017 and Edgar Rivera Valentín (scientist at Arecibo) said: “We found 2014 JO25 is a contact binary asteroid, two space rocks that were originally separate bodies, and each segment is about 640 meters and 670 meters, for a total of about 1.3 km long. Its rotation is of 3.5 hours” [2]. This asteroid flew past Earth on April 19 at a distance of about 4.6 lunar distances from the Earth. This was the closest approach by an asteroid since 4179 Toutatis. Toutatis flew past Earth on September 2004 at a distance of about 4 lunar distances from the Earth [3]. In April 12-2020 the asteroid will be at a minimum possible distance of 0.1617280 A.U from Earth [4]. From our observatory, located in Pasto-Colombia, we obtained a lot of pictures. Our data was published by the Minor Planet Center [5] and also appears at the web page of NEODyS [6]. Astrometry and photometry were carried out, and we calculated the orbital elements. We obtained the following orbital parameters: eccentricity=0.88454+/-0.00152, semi-major axis= 2.0573+/- 0.0216 A.U, orbital inclination=25.22+/-0.10 deg, longitude of the ascending node =30.6530+/-0.0032 deg, argument of perihelion=49.586+/-0.012 deg, mean motion = 0.33402+/-0.00527 deg/d, perihelion distance=0.237524+/-0.000644 A.U, aphelion distance=3.8770+/-0.0449 A.U, absolute magnitude =18.1. The parameters were calculated based on 164 observations. Dates: 2017 April: 22 to 24 with mean residual=0.22 arcseconds.The asteroid has an orbital period of 2.95 years. [1] [2] [3] [4] [5] [6]

Tipo de Elemento: Artículo
Palabras Clave: asteroide, AAS, NASA, Observatorio Universidad de Nariño, vodniza
Asunto: Q Ciencias > QB Astronomy
Division: Facultad de Ciencias Exactas y Naturales > Programa de Física > Productividad
Fecha Deposito: 06 Feb 2018 21:31
Ultima Modificación: 06 Feb 2018 21:31


Downloads per month over past year

Solo para control del elemento

Ver Elemento Ver Elemento