_Gellivara.png) Shape model ofGellivara from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | J. Palisa |
| Discovery site | Vienna Obs. |
| Discovery date | 14 September 1923 |
| Designations | |
| (1073) Gellivara | |
Named after | Gällivare(Swedish town)[2] |
| 1923 OW · 1929 UJ 1932 EP · 1951 QL | |
| main-belt · (outer) Themis[3][4] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 93.54 yr (34,165 days) |
| Aphelion | 3.7925AU |
| Perihelion | 2.5826 AU |
| 3.1875 AU | |
| Eccentricity | 0.1898 |
| 5.69yr (2,079 days) | |
| 248.01° | |
| 0° 10m 23.52s / day | |
| Inclination | 1.6043° |
| 39.579° | |
| 289.05° | |
| Physical characteristics | |
| Dimensions | 22.10±5.77 km[5] 22.71±7.49 km[6] 25.992±0.336 km[7][8] 26.87±0.79 km[9] 35.73±3.4 km[10] 35.76 km(derived)[3] |
| 11.32±0.05 h[11] | |
| 0.0241±0.005[10] 0.0289(derived)[3] 0.045±0.003[9] 0.0454±0.0047[7][8] 0.07±0.04[5] 0.07±0.08[6] | |
| C(assumed)[3] | |
| 11.70[1][3][5] · 11.73[6] · 11.82±0.26[12] · 11.90[8][9][10] | |
1073 Gellivara, provisional designation1923 OW, is a darkThemistian asteroid, approximately 27 kilometers (17 miles) in diameter, located in the outer regions of theasteroid belt. It was discovered by Austrian astronomerJohann Palisa at theVienna Observatory on 14 September 1923, and later named after the Swedish town ofGällivare.[2][13]
Gellivara is a Themistian asteroid that belongs to theThemis family (602),[3][4] a very largefamily of carbonaceous asteroids, named after24 Themis.[14] It orbits the Sun in theouter asteroid belt at a distance of 2.6–3.8 AU once every 5 years and 8 months (2,079 days;semi-major axis of 3.19 AU). Its orbit has aneccentricity of 0.19 and aninclination of 2° with respect to theecliptic.[1] The body'sobservation arc begins at Vienna on 1 October 1923, two weeks after its official discovery observation.[13]
Thisminor planet was named by Austrian astronomerJoseph Rheden with the consent of the discoverer's second wife, Anna Palisa, after the small Swedish town ofGällivare inLapland, where astronomers witnessed the total eclipse of the Sun in 1927.[2]Gellivara was the discoverer's last discovery.[15] The official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 101).[2]
Gellivara is an assumed carbonaceousC-type asteroid,[3] which agrees with the overallspectral type of the Themis family.[14]: 23
In November 2008, a rotationallightcurve ofGellivara was obtained from photometric observations by American astronomerRobert Stephens at the Goat Mountain Astronomical Research Station (G79) in California. Lightcurve analysis gave arotation period of 11.32 hours with a brightness amplitude of 0.35magnitude (U=2).[11]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Gellivara measures between 22.10 and 35.73 kilometers in diameter and its surface has analbedo between 0.0241 and 0.07.[5][6][7][8][9][10] TheCollaborative Asteroid Lightcurve Link agrees with IRAS and derives an albedo of 0.0289 with a diameter of 35.76 kilometers based on anabsolute magnitude of 11.7.[3]
