| Discovery[1] | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 14 July 1934 |
| Designations | |
| (1325) Inanda | |
Named after | Inanda[2] (South African township) |
| 1934 NR · 1926 RP 1930 OD | |
| main-belt · (middle) background[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.80 yr (30,241 days) |
| Aphelion | 3.1900AU |
| Perihelion | 1.8917 AU |
| 2.5408 AU | |
| Eccentricity | 0.2555 |
| 4.05yr (1,479 days) | |
| 165.02° | |
| 0° 14m 36.24s / day | |
| Inclination | 7.4205° |
| 14.393° | |
| 336.80° | |
| Physical characteristics | |
| Dimensions | 9.97±2.30 km[4] 10.87±0.6 km[5] 10.890±0.110 km[6][7] 12.34±0.61 km[8] |
| 20.52±0.05h[9][a] 24 h(poor)[10] 141.6±0.2 h(poor)[11] | |
| 0.20±0.13[4] 0.303±0.034[8] 0.374±0.041[6] 0.3742±0.0407[7] 0.3756±0.043[5] | |
| S[12][13] | |
| 11.50[5][7][8][12] · 11.66±0.28[13] · 12.2[1] · 12.37[4] | |
1325 Inanda, provisional designation1934 NR, is a stony backgroundasteroid from the central regions of theasteroid belt, approximately 11 kilometers in diameter. It was discovered on 14 July 1934, by South African astronomerCyril Jackson at theUnion Observatory in Johannesburg.[14] The asteroid was named after the township ofInanda in South Africa.[2]
Inanda is a non-family asteroid of the main belt'sbackground population.[3] It orbits the Sun in thecentral main-belt at a distance of 1.9–3.2 AU once every 4 years and 1 month (1,479 days;semi-major axis of 2.54 AU). Its orbit has aneccentricity of 0.26 and aninclination of 7° with respect to theecliptic.[1]
The asteroid was first identified as1926 RP at Johannesburg in September 1926. The body'sobservation arc begins with its official discovery observation in July 1934.[14]
Inanda has been characterized as a stony, commonS-type asteroid byPan-STARRS photometric survey.[12][13]
In November 2007, a rotationallightcurve ofInanda was obtained from photometric observations by American astronomerBrian Warner at hisPalmer Divide Observatory in Colorado. Lightcurve analysis gave an ambiguousrotation period of 20.52 hours with an alternative period solution of 35.83 hours and a brightness amplitude of 0.12magnitude (U=2).[9][a] The results supersede previous observations that gave a fragmentary lightcurve with a period of 24 and 141.6 hours respectively (U=1/1).[10][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,Inanda measures between 9.97 and 12.34 kilometers in diameter and its surface has analbedo between 0.20 and 0.3756.[4][5][6][7][8]
TheCollaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.3756 and a diameter of 10.87 kilometers based on anabsolute magnitude of 11.5.[12]
On 12 November 2007, anoccultation suggested thatInanda could be abinary asteroid.[15] However, the asteroid's suspected binary nature has not been mentioned in other studies since then.[12][16]
Thisminor planet was named after the South African,Zulu-speakingTownship ofInanda, KwaZulu-Natal. The official naming citation was mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 121).[2]
