_Olympiada.png) Shape model ofOlympiada from itslightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | V. Albitzkij |
| Discovery site | Simeiz Obs. |
| Discovery date | 23 June 1924 |
| Designations | |
| (1022) Olympiada | |
Named after | Olimpiada Albitskaya[2] (discoverer's mother) |
| 1924 RT · 1928 FQ 1948 QO · 1957 OC 1961 JF · 1962 QK A910 NA | |
| main-belt[1][3] · (outer)[4] background[5] | |
| Orbital characteristics[3] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 106.79yr (39,006 d) |
| Aphelion | 3.2959AU |
| Perihelion | 2.3144 AU |
| 2.8051 AU | |
| Eccentricity | 0.1749 |
| 4.70 yr (1,716 d) | |
| 10.487° | |
| 0° 12m 35.28s / day | |
| Inclination | 21.054° |
| 111.97° | |
| 124.74° | |
| Physical characteristics | |
| 26.39±2.2 km[6] 26.65 km(derived)[4] 32.88±0.76 km[7] 34.30±0.99 km[8] | |
| 3.822±0.006 h[9] 3.833±0.005 h[10][a] 3.8331±0.0006 h[11] 3.83359±0.00005 h[12] 3.834±0.001 h[13] 3.835±0.0016 h[14] 4.589±0.002 h(retracted)[15] | |
| 0.105±0.005[7] 0.125±0.017[8] 0.1600±0.030[6] 0.2069(derived)[4] | |
| SMASS =X[3][4] | |
| 10.053±0.001(R)[14] 10.20[3][4][8] 10.46±0.26[16] 10.50[6][7] | |
1022 Olympiada, provisional designation1924 RT, is a backgroundasteroid from the central regions of theasteroid belt, approximately 30 kilometers (19 miles) in diameter. It was discovered at theSimeiz Observatory on the Crimean peninsula on 23 June 1924, by Soviet astronomerVladimir Albitsky,[1] who named it after his mother, Olimpiada Albitskaya.[2] TheX-type asteroid has a short rotation period of 3.83 hours.[4]
Olympiada is a non-family asteroid from the main belt'sbackground population.[5] It orbits the Sun in thecentral asteroid belt at a distance of 2.3–3.3 AU once every 4 years and 8 months (1,716 days;semi-major axis of 2.81 AU). Its orbit has aneccentricity of 0.17 and aninclination of 21° with respect to theecliptic.[3]
The body'sobservation arc begins with its first observation asA910 NA atHeidelberg Observatory in July 1910, or nearly 14 years prior to its official discovery observation at Simeiz.[1]
Thisminor planet was named after Olimpiada Albitskaya, mother of the discovererVladimir Albitsky (1891–1952).[2] No accurate naming citation was given for this asteroid inThe Names of the Minor Planets. The author of theDictionary of Minor Planets,Lutz Schmadel, learned about the naming circumstances fromNikolai Chernykh (1931–2004), a prolific long-time astronomer at Nauchnij, Crimea.[2]
In theSMASS classification,Olympiada is anX-type asteroid.[3][4]
Several rotationallightcurves ofOlympiada have been obtained fromphotometric observations by American astronomerBrian Warner at hisPalmer Divide Observatory in Colorado. Analysis of the best-rated lightcurve from April 2008 gave arotation period of 3.833 hours with a consolidated brightness variation between 0.27 and 0.66magnitude (U=3),[4][10][a] while the period of his first 1999-observation was later revised from 4.589 to 3.822 hours.[9][15] For an asteroid of its size, it has a ratherfast spin-rate.
This period is also in good agreement with other observations obtained by astronomers at theBelgrade Astronomical Observatory (3.8331 h; Δ0.35 mag) in March 2008, by astronomers at thePalomar Transient Factory (3.835 h; Δ0.46 mag) in January 2012, and by a group of Italian astronomers (3.834 h; Δ0.66 mag) in March 2017 (U=3/2/3).[11][13][14]
In 2011, a modeled lightcurve using data from the Uppsala Asteroid Photometric Catalogue and other sources gave a concurring sidereal period 3.83359 hours, as well as twopoles at (46.0°, 10.0°) and (242.0°, 52.0°) inecliptic coordinates (λ, β) (Q=2+).[12] Brian Warner also determined two spin axes at (40.0°, 18.0°) and (250.0°, 71.0°) using his data set from 2008 (Q=2).[9]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite and theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Olympiada measures between 26.39 and 34.30 kilometers in diameter and its surface has analbedo between 0.105 and 0.1600.[6][7][8]
TheCollaborative Asteroid Lightcurve Link derives an untypically high albedo of 0.2069 and a diameter of 26.65 kilometers based on anabsolute magnitude of 10.2.[4]
