Asteroids with Satellites Database--Johnston's Archive
(283)
Emma
and S/2003 (283) 1
compiled by Wm. Robert Johnston
last updated
3 May 2022
--Orbital and physical data--
(See this page for definitions of quantities; source codes in brackets, see this 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 axis a: |
3.047100676 AU
| |
orbital period P: |
5.319103092 yr
(= 1942.802404 d)
| |
eccentricity e: |
0.148445205
| |
perihelion distance q: |
2.59477319 AU
| |
aphelion distance Q: |
3.499428161 AU
| |
inclination i: |
7.9935225°
| |
argument of perihelion ω: |
53.617046°
| |
ascending node Ω: |
304.371545°
| |
mean anomaly M: |
338.862139°
| |
perihelion passage TP: |
2014 Sep 14.0741
| |
Epoch: |
2014 May 23
| |
data arc: |
1894-2012
(1380 obs.)
| |
Earth MOID: |
1.59864 AU
| |
Jupiter Tisserand invariant TJ: |
3.206
|
orbital data, secondary:
|
binary dynamical type: | L [P07f] | |
semimajor axis as: |
581
± 3.6 km
[M08c]
| |
separation/primary radius as/rp: | 8.6 [*D] | |
separation/Hill radius as/rH: | 0.024 [*D] | |
orbital period Ps: |
3.353
± 0.00093
d [M08c]
| |
eccentricity es: |
0.12
± 0.01
[M08c]
| |
inclination is: | 0 ° [M05d] | |
normalized ang. mom. αL: |
0.63
[P07f]
|
|
other data, system (combined):
|
absolute mag. H: |
8.72
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
132.38
± 0.26
km [M14c]
| |
geometric albedo: |
0.033
± 0.009
[M14c]
| |
color index U-B: |
0.274
[T95a]
| |
color index B-V: |
0.628
[T95a]
| |
taxonomic type: |
X (Tholen) [JPL]
| |
mass m: |
1.38x1018
± 3x1016
kg [M08c]
| |
density ρ: |
0.7
± 0.2
g/cm3[M08c]
| |
Hill radius rH: |
24000 km [*D]
|
other data, primary:
|
diameter dp: |
132.38
± 0.26
km [M14c]
| |
rotation period RPp: |
6.888
± 0.007
h [S78a]
| |
amplitude in mag., rotational ΔM: |
0.31
[H03a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
9
± 5
km [M08c]
| |
diameter ratio ds/dp: |
0.067
± 0.037
[*D]
| |
component mag. difference ΔM: |
5.9
[* D]
| |
rotation period RPs: |
?
| |
|
|
--
(283) Emma and S/2003 (283) 1
--discovery and notes:
Primary discovered
1889 Feb 08
from
Nice, France
by
A. Charlois.
Alternate designation(s):
1980 FJ12.
Permanent number assigned 1889.
Named - for unknown namesake.
Companion discovered
2003 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. Duvert
using
adaptive optics telescope
observations from W. M. Keck II Telescope, Mauna Kea, Hawaii, USA.
Announced
2003 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 Bulletin Minor Planet Lightcurve Analysis at Bassano Bresciano Observatory: 2010 October - 2011 March
- Fornasier, S., Clark, B. E., & Dotto, E. 2011, Icarus Spectroscopic survey of X-type asteroids
- Bouvier, Jean-Claude & Horch, E. 2011, Bulletin of the American Astronomical Society Minor 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, Icarus Main 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 Astrophysics Photometry 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 Society HST/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 Circular S/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 Telegrams S/2003 (283) 1
- Stanzel, R. 1978, Astronomy and Astrophysics Supplement Series Lightcurves and Rotation Period of Minor Planet 283 Emma
- Voronov, N. 1934, Tsirkulyar Tashkentskoj Astronomicheskoj Observatorii Improved Elements of the Minor Planet (283) Emma
- Blondel, Henri 1917, Journal des Observateurs Eléments et éphéméride de (283) Emma
©
2003-2014, 2022
by Wm. Robert Johnston.
Last modified
3 May 2022.
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