1767 Lampland

1767 Lampland, provisional designation 1962 RJ, is an Eoan asteroid from the outer regions of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 7 September 1962, by astronomers of the Indiana Asteroid Program at Goethe Link Observatory in Indiana, United States.[6] The asteroid was named after American astronomer Carl Lampland.[2]

1767 Lampland
Shape model of Lampland from its lightcurve
Discovery [1]
Discovered byIndiana University
(Indiana Asteroid Program)
Discovery siteGoethe Link Obs.
Discovery date7 September 1962
Designations
(1767) Lampland
Named after
Carl Lampland [2]
(American astronomer)
1962 RJ · 1941 SP
1967 SC
main-belt · (outer)
Eos [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc75.52 yr (27,585 days)
Aphelion3.3209 AU
Perihelion2.7160 AU
3.0185 AU
Eccentricity0.1002
5.24 yr (1,915 days)
201.21°
0° 11m 16.44s / day
Inclination9.8418°
192.22°
135.41°
Physical characteristics
Dimensions15.448±2.805 km[4]
0.116±0.057[5]
Tholen = XC [1]
B–V = 0.750 [1]
U–B = 0.340 [1]
12.20[1]

    Orbit and classification

    Lampland a member the Eos family (606), the largest asteroid family in the outer main belt consisting of nearly 10,000 asteroids.[3][7]:23 It orbits the Sun at a distance of 2.7–3.3 AU once every 5 years and 3 months (1,915 days). Its orbit has an eccentricity of 0.10 and an inclination of 10° with respect to the ecliptic.[1]

    The asteroid was first identified as 1941 SP at Uccle Observatory in September 1941. The body's observation arc begins with a precovery at Palomar Observatory in August 1951, more than 11 years prior to its official discovery observation at Goethe Link.[6]

    Physical characteristics

    In the Tholen classification, its spectral type is ambiguous, closest to the X-type asteroid and with some resemblance to the C-type asteroids,[1] while the overall spectral type of the Eos family is that of a K-type.[7]:23

    Rotation period

    As of 2017, no rotational lightcurve of Lampland has been obtained from photometric observations. The asteroid's rotation period, poles and shape remain unknown.[8]

    Diameter and albedo

    According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Lampland measures 15.448 kilometers in diameter and its surface has an albedo of 0.116.[4][5]

    Naming

    This minor planet was named after American astronomer Carl Lampland (1873–1951), a graduate of Indiana University, best known for his radiometric measurements of planetary temperatures.[2]

    Lampland is also honored by a lunar and by a Martian crater. The name was proposed by Frank K. Edmondson, who initiated the Indiana Asteroid Program.[2] The official naming citation was published by the Minor Planet Center on 20 February 1971 (M.P.C. 3144).[9]

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    References
    1. "JPL Small-Body Database Browser: 1767 Lampland (1962 RJ)" (2017-03-30 last obs.). Jet Propulsion Laboratory. Retrieved 6 September 2017.
    2. Schmadel, Lutz D. (2007). "(1767) Lampland". Dictionary of Minor Planet Names – (1767) Lampland. Springer Berlin Heidelberg. p. 141. doi:10.1007/978-3-540-29925-7_1768. ISBN 978-3-540-00238-3.
    3. "Asteroid 1767 Lampland – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
    4. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; 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:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 6 September 2017.
    5. Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. Retrieved 6 September 2017.
    6. "1767 Lampland (1962 RJ)". Minor Planet Center. Retrieved 6 September 2017.
    7. Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). Identification and Dynamical Properties of Asteroid Families. Asteroids IV. pp. 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131.
    8. "LCDB Data for (1767) Lampland". Asteroid Lightcurve Database (LCDB). Retrieved 6 September 2017.
    9. Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.

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