1301 Yvonne

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1301 Yvonne
001301-asteroid shape model (1301) Yvonne.png
Modelled shape of Yvonne from its lightcurve
Discovery [1]
Discovered by L. Boyer
Discovery site Algiers Obs.
Discovery date7 March 1934
Designations
(1301) Yvonne
Named after
Yvonne Boyer [2]
(discoverer's sister)
1934 EA
main-belt  ·(outer) [3]
background [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 83.32 yr (30,433 days)
Aphelion 3.5134 AU
Perihelion 2.0225 AU
2.7680 AU
Eccentricity 0.2693
4.61 yr (1,682 days)
96.456°
0° 12m 50.4s / day
Inclination 34.030°
161.56°
302.27°
Physical characteristics
Mean diameter
18.693±4.943 km [5]
20.44±5.24 km [6]
21.438±0.088 km [7]
21.54±0.25 km [8]
21.681±0.204 km [9]
21.95±0.41 km [10]
22.77±2.4 km [11]
7.2536±0.0002 h [12]
7.3196±0.0001 h [12]
7.3200±0.0001 h [13]
7.320±0.005 h [14]
(39.0°, 41.0°) (λ1/β1) [15]
0.10±0.12 [6]
0.111±0.020 [10]
0.1167±0.0700 [5]
0.1632±0.040 [11]
0.1806±0.0479 [9]
0.201±0.006 [8]
SMASS = C [1] [3]  · C [16]
10.80 [8] [9] [11]  ·11.30 [1] [3] [5] [10]  ·11.32 [6]  ·11.40±0.22 [16]

    1301 Yvonne (prov. designation: 1934 EA) is a carbonaceous background asteroid from the background population of the intermediate asteroid belt, approximately 21 kilometers (13 miles) in diameter. It was discovered on 7 March 1934, by French astronomer Louis Boyer at the Algiers Observatory in North Africa. [17] The asteroid was named for the discoverer's sister, Yvonne Boyer

    Contents

    Orbit and classification

    Yvonne is a non-family of the main belt's background population. [4] It orbits the Sun in the central asteroid belt at a distance of 2.0–3.5  AU once every 4 years and 7 months (1,682 days; semi-major axis of 2.77 AU). Its orbit has an eccentricity of 0.27 and an inclination of 34° with respect to the ecliptic. [1] The body's observation arc begins with its official discovery observation at Algiers in March 1934. [17]

    Naming

    This minor planet was named after Yvonne Boyer, sister of discoverer. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 101 ). [2]

    Physical characteristics

    In the SMASS classification, Yvonne is a carbonaceous C-type asteroid. [1] PanSTARRS photometric survey also characterized the asteroid as a C-type. [16]

    Rotation period and pole

    Lightcurve-based 3D-model of Yvonne 1301Yvonne (Lightcurve Inversion).png
    Lightcurve-based 3D-model of Yvonne

    Between 2003 and 2017, four rotational lightcurves of Yvonne have been obtained from photometric observations. [12] [13] [14] Analysis gave a consolidated rotation period of 7.320 hours with a brightness amplitude between 0.52 and 0.90 magnitude ( U=3/3/3/3 ). [3] In 2011, a modeled lightcurve using data from the Uppsala Asteroid Photometric Catalogue (UAPC) and other sources gave a concurring period 7.31968±0.00005 hours, as well as a spin axis of (39.0°, 41.0°) in ecliptic coordinates (λ, β). [15]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Yvonne measures between 18.693 and 22.77 kilometers in diameter and its surface has an albedo between 0.10 and 0.201. [5] [6] [7] [8] [9] [10] [11]

    The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1054 (which is untypically high for a carbonaceous body) and a diameter of 22.50 kilometers based on an absolute magnitude of 11.3. [3]

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    References

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