1947 Iso-Heikkilä

1947 Iso-Heikkilä
Discovery [1]
Discovered by Y. Väisälä
Discovery site Turku Observatory
Discovery date 4 March 1935
Designations
MPC designation 1947 Iso-Heikkilä
Named after
Iso-Heikkilä
(location)[2]
1935 EA
main-belt · (outer)[3]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 80.74 yr (29490 days)
Aphelion 3.2706 AU (489.27 Gm)
Perihelion 3.0382 AU (454.51 Gm)
3.1544 AU (471.89 Gm)
Eccentricity 0.036829
5.60 yr (2046.3 d)
93.640°
 10m 33.312s / day
Inclination 11.910°
90.926°
143.70°
Earth MOID 2.03109 AU (303.847 Gm)
Jupiter MOID 1.7913 AU (267.97 Gm)
Jupiter Tisserand parameter 3.172
Physical characteristics
Dimensions 29.44±1.7 km[1]
30.72±0.86 km[4]
31.61±0.81 km[5]
29.20 km (derived)[3]
Mean radius
14.72 ± 0.85 km
5.0158 h (0.20899 d)[1][6]
0.0976
0.091±0.006[4]
0.049±0.009[5]
0.0571 (derived)[3]
0.0976 ± 0.012[1]
C[3]
11.4[1]

    1947 Iso-Heikkilä, provisional designation 1935 EA, is a dark, carbonaceous asteroid from the outer region of the asteroid belt, about 29 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory on 4 March 1935.[7]

    The C-type asteroid orbits the Sun at a distance of 3.0–3.3 AU once every 5.60 years (2,046 days). It has a rotation period of 5.016 hours.[6] It has an albedo of 0.06, according to the Light Curve Database project.[3]

    It is named for the farm, located in the Iso-Heikkilä district and owned by Turku University. It became the site of the Turku Observatory, which is also called Iso-Heikkilä Observatory, in Finnish: Iso-Heikkilän tähtitorni. The discovery of minor planet 1947 Iso-Heikkilä in 1935 was the first one made by the observatory.[2]

    References

    1. 1 2 3 4 5 6 "JPL Small-Body Database Browser: 1947 Iso-Heikkila (1935 EA)" (2015-10-16 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1947) Iso-Heikkilä. Springer Berlin Heidelberg. p. 156. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 5 "LCDB Data for (1947) Iso-Heikkila". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 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 November 2015.
    5. 1 2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; Cabrera, M. S. (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:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved November 2015.
    6. 1 2 Galád, A. (May 2010). "Accuracy of calibrated data from the SDSS moving object catalog, absolute magnitudes, and probable lightcurves for several asteroids". Astronomy and Astrophysics 514: 10. Bibcode:2010A&A...514A..55G. doi:10.1051/0004-6361/201014029. Retrieved November 2015.
    7. "1947 Iso-Heikkila (1935 EA)". Minor Planet Center. Retrieved November 2015.

    External links


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