1659 Punkaharju

1659 Punkaharju

Light-curve-based 3D-model of 1659 Punkaharju
Discovery [1]
Discovered by Y. Väisälä
Discovery site Turku Observatory
Discovery date 28 December 1940
Designations
MPC designation 1659 Punkaharju
Named after
 Punkaharju
(region)[2]
1940 YL · 1930 QB
1937 EB · 1944 RE
1951 EG · 1953 NH
1957 KO · 1958 TS1
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 85.56 yr (31250 days)
Aphelion 3.5054 AU (524.40 Gm)
Perihelion 2.0711 AU (309.83 Gm)
2.7882 AU (417.11 Gm)
Eccentricity 0.25721
4.66 yr (1700.6 d)
117.45°
0° 12m 42.084s / day
Inclination 16.477°
338.40°
35.590°
Earth MOID 1.08821 AU (162.794 Gm)
Jupiter MOID 2.04771 AU (306.333 Gm)
Jupiter Tisserand parameter 3.223
Physical characteristics
Dimensions 31.21 km[4]
28.24±1.54 km[5]
28.01±0.60 km[6]
31.53 km (derived)[3]
Mean radius
 15.605 ± 1.45 km
5.01 h (0.209 d)[1][7][8]
5.028±0.007 h[9]
5.01327±0.00005 h[10]
5.0138±0.0002 h[9]
0.1654[4]
0.202±0.024[5]
0.271±0.040[6]
0.2136 (derived)[3]
0.1654 ± 0.035[1]
SMASS = S
S [3]
9.9

    1659 Punkaharju, provisional designation 1940 YL, is an eccentric, stony asteroid from the outer region of the asteroid belt, about 31 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory on 28 December 1940.[11]

    The asteroid orbits the Sun at a distance of 2.1–3.5 AU once every 4 years and 8 months (1,698 days). Its orbit shows an eccentricity of 0.26 and is tilted by 16 degrees to the plane of the ecliptic. It has a well-determined rotation period of 5.0 hours.[7][8][9][10] The S-type asteroid has an albedo in the range of 0.17–0.27, according to several surveys carried out by the IRAS, Akari, WISE and NEOWISE missions.[4][5][6]

    It is named after the former municipality of Punkaharju, a well-known and beautiful isthmus region in southeastern Finland (also see Karelian Isthmus).[2]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1659 Punkaharju (1940 YL)" (2015-02-15 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1659) Punkaharju. Springer Berlin Heidelberg. p. 132. ISBN 978-3-540-29925-7. Retrieved 12 November 2015.
    3. 1 2 3 4 "LCDB Data for (1659) Punkaharju". Asteroid Lightcurve Database (LCDB). Retrieved 12 November 2015.
    4. 1 2 3 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved 12 November 2015.
    5. 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; 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 12 November 2015.
    6. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 12 November 2015.
    7. 1 2 Warner, B. (June 2001). "Asteroid Photometry at the Palmer Divide Observatory". The Minor Planet Bulletin. 28. Bibcode:2001MPBu...28...30W. Retrieved 12 November 2015.
    8. 1 2 Warner, Brian D. (January 2011). "Upon Further Review: V. An Examination of Previous Lightcurve Analysis from the Palmer Divide Observatory". The Minor Planet Bulletin. 38 (1): 63–65. Bibcode:2011MPBu...38...63W. ISSN 1052-8091. Retrieved 12 November 2015.
    9. 1 2 3 Behrend, Raoul. "Asteroids and comets rotation curves – (1659) Punkaharju". Geneva Observatory. Retrieved 12 November 2015.
    10. 1 2 Hanus, J.; Durech, J.; Broz, M.; Warner, B. D.; Pilcher, F.; et al. (June 2011). "A study of asteroid pole-latitude distribution based on an extended set of shape models derived by the lightcurve inversion method". Astronomy & Astrophysics. 530: 16. arXiv:1104.4114Freely accessible. Bibcode:2011A&A...530A.134H. doi:10.1051/0004-6361/201116738. Retrieved 12 November 2015.
    11. ↑ "1659 Punkaharju (1940 YL)". Minor Planet Center. Retrieved 12 November 2015.

    External links


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