1333 Cevenola
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Light curve-based 3D-model of Cevenola
|
|
| Discovery | |
|---|---|
| Discovered by | O. Bancilhon |
| Discovery site | Algiers Obs. |
| Discovery date | 20 February 1934 |
| Designations | |
| MPC designation | 1333 Cevenola |
|
Named after
|
Cévennes (mountains, France) |
| 1934 DA · 1951 EX | |
| main-belt · Eunomia | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.31 yr (30,064 days) |
| Aphelion | 2.9864 AU |
| Perihelion | 2.2775 AU |
| 2.6319 AU | |
| Eccentricity | 0.1347 |
| 4.27 yr (1,560 days) | |
| 203.92° | |
| 0° 13m 50.88s / day | |
| Inclination | 14.641° |
| 115.10° | |
| 336.10° | |
| Known satellites | 1 |
| Physical characteristics | |
| Dimensions |
11.2±1.4 km 11.31±0.99 km 14.54 km (calculated) 15.24±0.74 km 15.262±0.209 km 17.146±0.237 km |
|
4.877±0.001 h 4.8788±0.0004 h 4.87932±0.00005 h 4.880±0.003 h 4.88±0.02 h 4.88 h |
|
|
0.1662±0.0378 0.209±0.030 0.21 (assumed) 0.214±0.081 0.380±0.043 |
|
| Sq · S | |
| 11.4 · 11.5 · 12.05±0.12 | |
| Discovery | |
|---|---|
| Discovery date | 12 October 2008 (announced) |
| Light curve | |
| Orbital characteristics | |
| Satellite of | 1333 Cevenola |
| Physical characteristics | |
| Dimensions | 6.0±0.1 km |
| Volume | 113 km3(assumed) |
1333 Cevenola, provisional designation 1934 DA, is a binary Eunomian asteroid from the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 20 February 1934, by French astronomer Odette Bancilhon at Algiers Observatory, Algeria in Northern Africa.
The S-type asteroid is a member of the Eunomia family. More specifically, it is estimated to have a Sq spectral type, which would also agree with its family classification. It orbits the Sun at a distance of 2.3–3.0 AU once every 4 years and 3 months (1,560 days). Its orbit has an eccentricity of 0.13 and an inclination of 15° with respect to the ecliptic. As no precoveries were taken, and no prior identificatins were made, the body's observation arc begins with its official discovery observation.
Photometric light-curve observations gave a well determined rotation period of 4.88 hours with a brightness variation between 0.57 and 1.1 magnitude (U=3/3/3/3/3). The asteroid has a geometric albedo of 0.21, as measured by the Japanese Infrared Satellite, Akari, and by Spitzer's Infrared Spectrograph (IRS). Observations by the NEO-/Wide-field Infrared Survey Explorer missions gave a somewhat different result of 0.17 and 0.38, respectively. Determinations of the asteroid's diameter resulted in 11 kilometers for Spitzer and WISE/NEOWISE, 15 kilometer for AKARAI and the LCDB's best calculations, and 17 kilometers for the preliminary results of the NEOWISE mission.
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