1443 Ruppina

1443 Ruppina
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 29 December 1937
Designations
MPC designation 1443 Ruppina
Named after
 Ruppin (city)[2]
1937 YG · 1931 TX3
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 84.49 yr (30860 days)
Aphelion 3.1256 AU (467.58 Gm)
Perihelion 2.7498 AU (411.36 Gm)
2.9377 AU (439.47 Gm)
Eccentricity 0.063965
5.04 yr (1839.1 d)
342.79°
0° 11m 44.7s / day
Inclination 1.9297°
174.89°
163.23°
Earth MOID 1.73976 AU (260.264 Gm)
Jupiter MOID 2.12355 AU (317.679 Gm)
Jupiter Tisserand parameter 3.270
Physical characteristics
Dimensions 18±3 km[4]
16.67±0.75 km[5]
16.713±0.173 km[6]
32.18 km (derived)[3]
5.880 h (0.2450 d)[1][4][7]
5.9046±0.0347 h[8]
5.890±0.040 h[9]
0.20±0.07[4]
0.176±0.017[5]
0.2128±0.0392[6]
0.057 (assumed)[3]
C [3]
11.0

    1443 Ruppina, provisional designation 1937 YG, is a carbonaceous asteroid from the outer region of the asteroid belt, about 17 kilometers in diameter, while others derive a much larger size of 32 kilometers.[3] It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 29 December 1937.[10]

    The asteroid orbits the Sun at a distance of 2.7–3.1 AU once every 5 years (1,838 days). Its orbit shows an eccentricity of 0.06 and is tilted by 2 degrees to the plane of the ecliptic. It has a rotation period of 5.9 hours[8] and an albedo of 0.18–021, based on observations by the Akari and WISE/NEOWISE missions.[5][6] The Collaborative Asteroid Lightcurve Link (CALL) considers the body to be a much darker C-type asteroid with an albedo of only 0.05, which consequently leads to a much higher derived figure for its diameter.[3]

    The asteroid is named after the city of Ruppin, Germany, the birthplace of astronomer Martin Ebell, who proposed the name and after whom the minor planet 1205 Ebella is named.[2]

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1443 Ruppina (1937 YG)" (2015-09-20 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1443) Ruppina. Springer Berlin Heidelberg. p. 116. ISBN 978-3-540-29925-7. Retrieved 18 November 2015.
    3. 1 2 3 4 5 6 "LCDB Data for (1443) Ruppina". Asteroid Lightcurve Database (LCDB). Retrieved 18 November 2015.
    4. 1 2 3 Neugent, Kathryn F.; Slivan, Stephen M. (September 2008). "Rotation Periods and H Magnitudes of Two Koronis Family Members". The Minor Planet Bulletin. 35 (3): 116–118. Bibcode:2008MPBu...35..116N. ISSN 1052-8091. Retrieved 18 November 2015.
    5. 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 18 November 2015.
    6. 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 18 November 2015.
    7. ↑ Arredondo, Anicia; Hartt, Anne-Marie; Yazdi, Sormeh K. (October 2014). "Rotation Periods and R Magnitudes of Three Koronis Family Members". The Minor Planet Bulletin. 41 (4): 252–254. Bibcode:2014MPBu...41..252A. ISSN 1052-8091. Retrieved 18 November 2015.
    8. 1 2 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041Freely accessible. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 18 November 2015.
    9. ↑ Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (August 2015). "Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory". The Astrophysical Journal Supplement Series. 219 (2): 19. arXiv:1506.08493Freely accessible. Bibcode:2015ApJS..219...27C. doi:10.1088/0067-0049/219/2/27. Retrieved 18 November 2015.
    10. ↑ "1443 Ruppina (1937 YG)". Minor Planet Center. Retrieved 18 November 2015.

    External links


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