1960 Guisan

1960 Guisan
Discovery [1]
Discovered by P. Wild
Discovery site Zimmerwald Obs.
Discovery date 25 October 1973
Designations
MPC designation 1960 Guisan
Named after
 Henri Guisan (General)[2]
1973 UA · 1961 VC1
1969 UR2
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 60.98 yr (22273 days)
Aphelion 2.8347 AU (424.07 Gm)
Perihelion 2.2188 AU (331.93 Gm)
2.5268 AU (378.00 Gm)
Eccentricity 0.12188
4.02 yr (1467.0 d)
287.11°
0° 14m 43.404s / day
Inclination 8.4735°
22.213°
263.82°
Earth MOID 1.22078 AU (182.626 Gm)
Jupiter MOID 2.33321 AU (349.043 Gm)
Jupiter Tisserand parameter 3.428
Physical characteristics
Dimensions 24.55 km[4]
27.23±0.57 km[5]
28.411±0.105 km[6]
24.65±0.28 km[7]
Mean radius
 12.275 ± 0.6 km
8.46 h (0.353 d)[1][8]
0.0496[4]
0.041±0.002[5]
0.0370±0.0050[6]
0.049±0.011[7]
0.0496 ± 0.005[1]
B–V = 0.720
U–B = 0.290
C [3]
11.93

    1960 Guisan, provisional designation 1973 UA, is a dark, carbonaceous asteroid from the inner regions of the asteroid belt, about 25 kilometers in diameter. It was discovered by astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland on 25 October 1973.[9]

    The C-type asteroid orbits the Sun at a distance of 2.2–2.8 AU once every 4 years (1,468 days). It has a rotation period of 8.46 hours[8] and a geometric albedo of 0.04–0.05, as measured by the IRAS, Akari, WISE and NEOWISE surveys.[4][5][6][7]

    It was named in memory of Henri Guisan (1874–1960), general of the Swiss army during the Second World War. He was notably from the country's smaller Swiss-French part rather than from the German-speaking part.[2]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1960 Guisan (1973 UA)" (2015-05-26 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1960) Guisan. Springer Berlin Heidelberg. p. 158. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 "LCDB Data for (1960) Guisan". Asteroid Lightcurve Database (LCDB). Retrieved 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 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 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:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015.
    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:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved November 2015.
    8. 1 2 Binzel, R. P. (October 1987). "A photoelectric survey of 130 asteroids". Icarus: 135–208. Bibcode:1987Icar...72..135B. doi:10.1016/0019-1035(87)90125-4. ISSN 0019-1035. Retrieved November 2015.
    9. ↑ "1960 Guisan (1973 UA)". Minor Planet Center. Retrieved November 2015.

    External links


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