astro.wikisort.org - Asteroid

30718 Records, provisional designation 1955 RB₁, is a dark background asteroid from the central region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 14 September 1955, by Indiana University's Indiana Asteroid Program at its Goethe Link Observatory near Brooklyn, Indiana, United States.[2] It was the program's final discovery and was named after IU's astronomy staff member Brenda Records.[3]

30718 Records

Discovery [1]
Discovered by	Indiana University (Indiana Asteroid Program)
Discovery site	Goethe Link Obs.
Discovery date	14 September 1955
Designations
MPC designation	(30718) Records
Named after	Brenda Records (Indiana manager)[2][3]
Alternative designations	1955 RB1 · 1955 TJ 1964 PH · 1978 VN13 2001 KW67
Minor planet category	main-belt (middle)[2] background
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	61.44 yr (22,442 days)
Aphelion	3.6403 AU
Perihelion	1.8894 AU
Semi-major axis	2.7649 AU
Eccentricity	0.3166
Orbital period (sidereal)	4.60 yr (1,679 days)
Mean anomaly	185.58°
Mean motion	0° 12m 51.84s / day
Inclination	5.2938°
Longitude of ascending node	278.31°
Argument of perihelion	54.686°
Physical characteristics
Mean diameter	9.219±0.022 km[4]
Geometric albedo	0.066±0.010[4]
Absolute magnitude (H)	14.0[1]

Classification and orbit

Records is a non-family from the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 1.9–3.6 AU once every 4 years and 7 months (1,679 days). Its orbit has an eccentricity of 0.32 and an inclination of 5° with respect to the ecliptic.[1] As no precoveries were taken, the body's observation arc begins with its official discovery observation in 1955.[2]

Physical characteristics

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Records measures 9.219 kilometers in diameter and its surface has a low albedo of 0.066.[4]

As of 2018, the asteroid's spectral type, as well as its rotation period and shape remain unknown.[1][5]

Naming

This minor planet honors Brenda Records (born 1946), who served as office manager for the Indiana University Department of Astronomy for over 20 years. Records was also an administrative assistant to astronomer Frank K. Edmondson, transcribing several of his books.[2][3] The official naming citation was published by the Minor Planet Center on 24 November 2007 (M.P.C. 61269).[6]

References

External links

• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
• Discovery Circumstances: Numbered Minor Planets (30001)-(35000) – Minor Planet Center
• 30718 Records at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 30718 Records at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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