| Discovery[1] | |
|---|---|
| Discovered by | E. Delporte |
| Discovery site | Uccle Obs. |
| Discovery date | 6 October 1928 |
| Designations | |
| (1124) Stroobantia | |
Named after | Paul Stroobant (Belgian astronomer)[2] |
| 1928 TB · 1926 FC 1930 BK · 1951 DJ | |
| main-belt · (outer)[3] | |
| Orbital characteristics[1] | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.39 yr (31,554 days) |
| Aphelion | 3.0157AU |
| Perihelion | 2.8384 AU |
| 2.9271 AU | |
| Eccentricity | 0.0303 |
| 5.01yr (1,829 days) | |
| 309.88° | |
| 0° 11m 48.48s / day | |
| Inclination | 7.7935° |
| 22.248° | |
| 264.49° | |
| Physical characteristics | |
| Dimensions | 24.450±0.140 km[4] 24.65±1.1 km(IRAS:9)[5] 25.823±0.121 km[6] 27.03±0.70 km[7] 29.68±0.57 km[8] |
| 16.39h[9] 17.0±0.2 h[10] | |
| 0.108±0.014[8] 0.135±0.008[7] 0.1454±0.0165[6] 0.1569±0.015(IRAS:9)[5] | |
| B–V = 0.702[1] U–B = 0.223[1] Tholen =X[1] M[11] · X[3][12] | |
| 10.67[1][3][5][6][7][8] · 10.67±0.22[12] | |
1124 Stroobantia, provisional designation1928 TB, is a metallicasteroid from the outer region of theasteroid belt, approximately 25 kilometers in diameter. It was discovered on 6 October 1928, by Belgian astronomerEugène Delporte atUccle Observatory in Belgium.[13] It is named for astronomer Paul Stroobant.[2]
Stroobantia orbits the Sun at a distance of 2.8–3.0 AU once every 5.01 years (1,829 days). Its orbit has aneccentricity of 0.03 and aninclination of 8° with respect to theecliptic.[1] First identified as1926 FC atHeidelberg in 1926, the asteroid'sobservation arc begins atAlgiers Observatory in 1931, or three years after its official discovery observation at Uccle.[13]
In theTholen taxonomy,Stroobantia is classified as a genericX-type asteroid. It was grouped it into the metallic subcategory ofM-type asteroid by a spectroscopic survey of X-type asteroids using theTNG,NTT andIRTF telescopes.[1][11]
Two fragmentary rotationallightcurves ofStroobantia were obtained from photometric observations by Ricardo Gil-Hutton at theFélix Aguilar Observatory in Argentina, and by French amateur astronomersLaurent Bernasconi. Lightcuve analysis gave arotation period of 16.39 and 17.0 hours with a brightness amplitude of 0.15 and 0.06magnitude, respectively (U=1/1).[9][10]
According to the surveys carried out by the Infrared Astronomical SatelliteIRAS, the JapaneseAkari satellite, and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Stroobantia measures between 24.45 and 29.68 kilometers in diameter, and its surface has analbedo between 0.108 and 0.1569.[4][5][6][7][8] TheCollaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.1569 and a diameter of 24.65 kilometers with anabsolute magnitude of 10.67.[3]
Thisminor planet was named for Paul Stroobant (1868–1936), a Belgian astronomer and director of the Uccle Observatory, where this asteroid was discovered. Stroobant's research included the number, mass and distribution of the minor planets. Naming citation was first mentioned inThe Names of the Minor Planets byPaul Herget in 1955 (H 105).[2]
