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Asteroids with Satellites Database--Johnston's Archive
(283) Emmaand S/2003 (283) 1
compiled by Wm. Robert Johnston
last updated3 May 2022--Orbital and physical data--
(Seethis page for definitions of quantities; source codes in brackets, seethis link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:main belt asteroid
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 3.047100676 AU | | orbital periodP: | 5.319103092 yr
(= 1942.802404 d) | | eccentricitye: | 0.148445205 | | perihelion distanceq: | 2.59477319 AU | | aphelion distanceQ: | 3.499428161 AU | | inclinationi: | 7.9935225° | | argument of perihelionω: | 53.617046° | | ascending nodeΩ: | 304.371545° | | mean anomalyM: | 338.862139° | | perihelion passageTP: | 2014 Sep 14.0741 | | Epoch: | 2014 May 23 | | data arc: | 1894-2012(1380 obs.) | | Earth MOID: | 1.59864 AU | | Jupiter Tisserand invariantTJ: | 3.206 |
orbital data, secondary: | binary dynamical type: | L [P07f] | | semimajor axisas: | 581± 3.6 km[M08c] | | separation/primary radiusas/rp: | 8.6 [*D] | | separation/Hill radiusas/rH: | 0.024 [*D] | | orbital periodPs: | 3.353± 0.00093d [M08c] | | eccentricityes: | 0.12± 0.01[M08c] | | inclinationis: | 0 ° [M05d] | | normalized ang. mom.αL: | 0.63[P07f] |
| other data, system (combined):| absolute mag.H: | 8.72[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 132.38± 0.26 km [M14c] | | geometric albedo: | 0.033± 0.009[M14c] | | color indexU-B: | 0.274[T95a] | | color indexB-V: | 0.628[T95a] | | taxonomic type: | X (Tholen) [JPL] | | massm: | 1.38x1018 ± 3x1016kg [M08c] | | densityρ: | 0.7± 0.2 g/cm3[M08c] | | Hill radiusrH: | 24000 km [*D] |
other data, primary: | diameterdp: | 132.38± 0.26 km [M14c] | | rotation periodRPp: | 6.888± 0.007h [S78a] | | amplitude in mag., rotationalΔM: | 0.31 [H03a] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 9± 5km [M08c] | | diameter ratiods/dp: | 0.067± 0.037 [*D] | | component mag. differenceΔM: | 5.9 [* D] | | rotation periodRPs: | ? | |
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--(283) Emma and S/2003 (283) 1 --discovery and notes:
Primary discovered1889 Feb 08from Nice, Franceby A. Charlois.Alternate designation(s): 1980 FJ12.Permanent number assigned 1889.
Named - for unknown namesake.
Companion discovered2003 Jul 14 by W. J. Merline, C. Dumas, N. Siegler, L. M. Close, C. R. Chapman, P. M. Tamblyn, D. Terrell, A. Conrad, F. Menard, and G. Duvertusingadaptive optics telescope observations from W. M. Keck II Telescope, Mauna Kea, Hawaii, USA.Announced2003 Jul 27 [M03f].Provisional designation S/2003 (283) 1.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Strabla, Luca, Quadri, Ulisse, & Girelli, Roberto 2011, Minor Planet BulletinMinor Planet Lightcurve Analysis at Bassano Bresciano Observatory: 2010 October - 2011 March
- Fornasier, S., Clark, B. E., & Dotto, E. 2011, IcarusSpectroscopic survey of X-type asteroids
- Bouvier, Jean-Claude & Horch, E. 2011, Bulletin of the American Astronomical SocietyMinor Planet Observations with the Differential Speckle Survey Instrument
- Marchis, F., Descamps, P., Berthier, J., Hestroffer, D., Vachier, F., Baek, M., Harris, A. W., & Nesvorný, D. 2008, IcarusMain belt binary asteroidal systems with eccentric mutual orbits
- Michałowski, T., Kaasalainen, M., Polińska, M., Marciniak, A., Kwiatkowski, T., Kryszczyńska, A., & Velichko, F. P. 2006, Astronomy and AstrophysicsPhotometry and models of selected main belt asteroids. III. 283 Emma, 665 Sabine, and 690 Wratislavia
- Hestroffer, Daniel, Tanga, P., Cellino, A., Kaasalainen, M., Torppa, J., Marchis, F., Richardson, D. C., Elankumaran, P., Berthier, J., Colas, F., & Lounis, S. 2006, Bulletin of the American Astronomical SocietyHST/FGS High Angular Resolution Observations of Binary Asteroids
- Merline, W. J., Dumas, C., Siegler, N., Close, L. M., Chapman, C. R., Tamblyn, P. M., Terrell, D., Conrad, A., Menard, F., & Duvert, G. 2003, International Astronomical Union CircularS/2003 (283) 1
- Merline, W. J., Dumas, C., Siegler, N., Close, L. M., Chapman, C. R., Tamblyn, P. M., Terrell, D., Conrad, A., Menard, F., & Duvert, G. 2003, Central Bureau Electronic TelegramsS/2003 (283) 1
- Stanzel, R. 1978, Astronomy and Astrophysics Supplement SeriesLightcurves and Rotation Period of Minor Planet 283 Emma
- Voronov, N. 1934, Tsirkulyar Tashkentskoj Astronomicheskoj ObservatoriiImproved Elements of the Minor Planet (283) Emma
- Blondel, Henri 1917, Journal des ObservateursEléments et éphéméride de (283) Emma
©2003-2014, 2022by Wm. Robert Johnston.
Last modified3 May 2022.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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