1801 Titicaca

1801 Titicaca
Discovery [1]
Discovered by M. Itzigsohn
Discovery site La Plata Observatory
Discovery date 23 September 1952
Designations
MPC designation 1801 Titicaca
Named after
 Lake Titicaca[2]
1952 SP1 · 1963 UR
main-belt · Eos [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 63.34 yr (23134 days)
Aphelion 3.2279 AU (482.89 Gm)
Perihelion 2.8123 AU (420.71 Gm)
3.0201 AU (451.80 Gm)
Eccentricity 0.068805
5.25 yr (1917.0 d)
303.38°
0° 11m 16.044s / day
Inclination 10.970°
77.607°
9.2866°
Earth MOID 1.82842 AU (273.528 Gm)
Jupiter MOID 1.99969 AU (299.149 Gm)
Jupiter Tisserand parameter 3.215
Physical characteristics
Dimensions 23.18 km[4]
19.72±1.19 km[5]
24.772±0.106 km[6]
19.31±0.41 km[7]
23.13 km (derived)[3]
Mean radius
 11.59 ± 1.2 km
3.2106 h (0.13378 d)[1][8]
0.1309[4]
0.181±0.023[5]
0.1146±0.0104[6]
0.172±0.018[7]
0.1199 (derived)[3]
0.1309 ± 0.032[1]
S [3]
11.2

    1801 Titicaca, provisional designation 1952 SP1, is a stony asteroid from the asteroid belt, about 23 kilometers in diameter. It was discovered by Argentine astronomer Miguel Itzigsohn at La Plata Observatory in the capital of the province of Buenos Aires on 23 September 1952.[9]

    The S-type asteroid orbits the Sun at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,917 days). With a semi-major axis of 3.02 AU, an eccentricity of 0.07 and an inclination of 11 degrees, the body is a typical member of the Eos family of asteroids.[1][3]

    It has a rotation period of 3.2 hours[8] and a geometric albedo between 0.12 and 0.17 based on observations of the WISE/NEOWISE missions and derived calculations by the LCDB project, respectively.[3][7]

    The asteroid is named after Lake Titicaca in the Andes, on the border of Peru and Bolivia at an altitude of 3,812 metres (12,507 feet) above sea level, the largest lake by volume in South America and one of the largest and highest lakes in the world.[2]

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 1801 Titicaca (1952 SP1)" (2015-10-17 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1801) Titicaca. Springer Berlin Heidelberg. p. 144. ISBN 978-3-540-29925-7. Retrieved 22 August 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (1801) Titicaca". Asteroid Lightcurve Database (LCDB). Retrieved 22 August 2016.
    4. 1 2 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 22 August 2016.
    5. 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 22 August 2016.
    6. 1 2 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 22 August 2016.
    7. 1 2 3 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:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 22 August 2016.
    8. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves (1801) Titicaca". Geneva Observatory. Retrieved 22 August 2016.
    9. ↑ "1801 Titicaca (1952 SP1)". Minor Planet Center. Retrieved 22 August 2016.

    External links


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