| Discovery[1] | |
|---|---|
| Discovered by | N. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 11 September 1972 |
| Designations | |
| (1907) Rudneva | |
Named after | Yevgeniya Rudneva[2] (Soviet geodesist and war hero) |
| 1972 RC2 · 1935 QX 1938 EY · 1938 FK 1942 EH · 1942 EM1 1950 EP · 1950 FB 1950 HL · 1958 DD 1958 FN · 1970 CP | |
| main-belt · (middle) background[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 79.66 yr (29,094 days) |
| Aphelion | 2.6541AU |
| Perihelion | 2.4386 AU |
| 2.5464 AU | |
| Eccentricity | 0.0423 |
| 4.06yr (1,484 days) | |
| 181.05° | |
| 0° 14m 33.36s / day | |
| Inclination | 3.2198° |
| 152.07° | |
| 59.096° | |
| Physical characteristics | |
| Dimensions | 10.977±0.108 km[4] 10.98±0.43 km[5] 11.32±2.95 km[6] 11.83 km(calculated)[7] 11.848±0.140 km[8] |
| 44±3h(poor)[9] | |
| 0.18±0.13[6] 0.20(assumed)[7] 0.2009±0.0531[8] 0.232±0.025[5] | |
| S(assumed)[7] | |
| 12.00[5][7][8] · 12.1[1] · 12.29[6] · 12.45±0.27[10] | |
1907 Rudneva, provisional designation1972 RC2, is a stony backgroundasteroid from the central regions of theasteroid belt, approximately 11 kilometers in diameter. It was discovered on 11 September 1972, by astronomerNikolai Chernykh at theCrimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula.[11] The asteroid was named after Soviet geodesist and war heroYevgeniya Rudneva.[2]
Rudneva is a non-family asteroid from the main belt'sbackground population. It orbits the Sun in thecentral asteroid belt at a distance of 2.4–2.7 AU once every 4 years and 1 month (1,484 days;semi-major axis of 2.55 AU). Its orbit has aneccentricity of 0.04 and aninclination of 3° with respect to theecliptic.[1]
The asteroid was first identified as1935 QX atJohannesburg Observatory in August 1935. The body'sobservation arc begins with its identification as1938 EY atHeidelberg Observatory in March 1938, almost 34 years prior to its official discovery observation at Nauchnyj.[11]
Rudneva is an assumed stonyS-type asteroid.[7]
In April 2003, a fragmentary rotationallightcurve ofRudneva was obtained from photometric observations by French amateur astronomerRené Roy. Lightcurve analysis gave arotation period of 44 hours with a brightness amplitude of at least 0.1magnitude (U=1+).[9] As of 2017, no secure period ofRudneva has been obtained.[7]
According to the survey carried out by theNEOWISE mission of NASA'sWide-field Infrared Survey Explorer,Rudneva measures between 10.977 and 11.848 kilometers in diameter and its surface has analbedo between 0.18 and 0.232.[4][5][6][8]
TheCollaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 11.83 kilometers based on anabsolute magnitude of 12.0.[7]
Thisminor planet was named after Ukrainian-bornYevgeniya Rudneva (1920–1944) a member of theAstronomical–Geodetical Society of the U.S.S.R., head of the solar department, andHero of the Soviet Union. She voluntarily joined the army as a navigator in the all-female Night Bombers Aviation Regiment, known as theNight Witches. She died in April 1944, while flying her 645th combat mission.[2] The officialnaming citation was published by theMinor Planet Center on 20 February 1976 (M.P.C. 3937).[12]
