19738 Calinger (provisional designation 2000 AS97) is a background asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter.
| Discovery[1] | |
|---|---|
| Discovered by | LINEAR |
| Discovery site | Lincoln Lab's ETS |
| Discovery date | 4 January 2000 |
| Designations | |
| (19738) Calinger | |
Named after | Manetta Calinger (DCYSC mentor)[2] |
| 2000 AS97 · 1991 RZ36 | |
| main-belt · inner background | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 26.88 yr (9,819 days) |
| Aphelion | 2.7043 AU |
| Perihelion | 1.8606 AU |
| 2.2824 AU | |
| Eccentricity | 0.1848 |
| 3.45 yr (1,260 days) | |
| 165.65° | |
| 0° 17m 8.88s / day | |
| Inclination | 7.7356° |
| 90.753° | |
| 280.16° | |
| Physical characteristics | |
| Dimensions | 3.272±0.082[3] |
| 0.314±0.056[3] | |
| 14.1[1] | |
It was discovered on 4 January 2000, by members of the Lincoln Near-Earth Asteroid Research team at Lincoln Laboratory's Experimental Test Site in Socorro, New Mexico, and named after DCYSC-mentor Manetta Calinger.[2][4]
Classification and orbit edit
Calinger is a non-family asteroid from the main belt's background population. It orbits the Sun in the inner asteroid belt at a distance of 1.9–2.7 AU once every 3 years and 5 months (1,260 days). Its orbit has an eccentricity of 0.18 and an inclination of 8° with respect to the ecliptic.[1]
The body's observation arc begins almost 10 years prior to its official discovery observation, with a precovery from the Digitized Sky Survey taken at Palomar Observatory in May 1990.[4]
Physical characteristics edit
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Calinger measures 3.272 kilometers in diameter and its surface has a high albedo of 0.314.[3] It has an absolute magnitude of 14.1.[1]
Lightcurves edit
As of 2017, Calinger's rotation period and shape remain unknown.[1][5]
Naming edit
This minor planet was named after Manetta Calinger who mentored a finalist in the 2003 Discovery Channel Youth Science Challenge, DCYSC.[2] The approved naming citation was published by the Minor Planet Center on 10 October 2003 (M.P.C. 49772).[6]
References edit
- ^ a b c d e f "JPL Small-Body Database Browser: 19738 Calinger (2000 AS97)" (2017-03-31 last obs.). Jet Propulsion Laboratory. Retrieved 26 June 2017.
- ^ a b c Schmadel, Lutz D. (2006). "(19738) Calinger [2.28, 0.19, 7.7]". Dictionary of Minor Planet Names – (19738) Calinger, Addendum to Fifth Edition: 2003–2005. Springer Berlin Heidelberg. p. 142. doi:10.1007/978-3-540-34361-5_1596. ISBN 978-3-540-34361-5.
- ^ a b c Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 9 March 2017.
- ^ a b "19738 Calinger (2000 AS97)". Minor Planet Center. Retrieved 9 March 2017.
- ^ "LCDB Data for (19738) Calinger". Asteroid Lightcurve Database (LCDB). Retrieved 26 June 2017.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 9 March 2017.
External links edit
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (15001)-(20000) – Minor Planet Center
- 19738 Calinger at AstDyS-2, Asteroids—Dynamic Site
- 19738 Calinger at the JPL Small-Body Database
