(22899) Alconrad
and S/2003 (22899) 1 (original) (raw)
Asteroids with Satellites Database--Johnston's Archive
(22899) Alconrad_and_ S/2003 (22899) 1
compiled by Wm. Robert Johnston
last updated 21 June 2016
--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:**2.844299130 AUorbital period **P:**4.797015316 yr (= 1752.109844 d)eccentricity **e:**0.081280706perihelion distance **q:**2.61311249 AUaphelion distance **Q:**3.075485771 AUinclination **i:**2.8811327°argument of perihelion **ω:**218.37885°ascending node **Ω:**136.02506°mean anomaly **M:**56.959018°perihelion passage **TP:2013 Aug 18.7820Epoch:2014 May 23data arc:1994-2014 (934 obs.)Earth MOID:**1.60724 AUJupiter Tisserand invariant **TJ:3.301 orbital data, secondary: binary dynamical type:**W [P07f]semimajor axis **as:**182 km [D10a]separation/primary radius **as/rp:**66 [*E]separation/Hill radius **as/rH:**0.161 [*E]orbital period **Ps:**56 d [M04a]eccentricity es:?normalized ang. mom. **αL:**0.76 [M09a] | other data, system (combined): absolute mag. **H:**13.7 [MPC]slope parameter G: (0.15) [*A]effective diameter dE:5.68 ± 0.47 km [M11b]geometric albedo:0.181 ± 0.028 [M11b]color index U-B:?color index B-V:?taxonomic type:?mass m:?density ρ: (1.6 g/cm3) [*A]Hill radius **rH:**1100 km [*E] other data, primary: diameter **dp:**5.54 ± 0.46 km [*D]rotation period **RPp:**4.03 ± 0.03 h [P11b]amplitude in mag., rotational ΔM:?pole direction Β, λ:? , ? other data, secondary: diameter **ds:**1.23 km [*D]diameter ratio **ds/dp:**0.222 [D10a]component mag. difference **ΔM:**2.5 [I8232]rotation period RPs:? |
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-- (22899) Alconrad and S/2003 (22899) 1 --discovery and notes:
Primary discovered 1999 Oct 11 from Vi�njan, Croatia by K. Korlevic and M. Juric. Alternate designation(s): 1999 TO14, 1998 ML48. Linked to prediscovery observations from 1994 Oct 09. Permanent number assigned 2001 Mar 09.
Companion discovered 2003 Jul 26 by W. J. Merline, P. M. Tamblyn, C. R. Chapman, D. Nesvorny, D. D. Durda, C. Dumas, A. D. Storrs, L. M. Close, and F. Menard using Hubble Space Telescope observations from Hubble Space Telescope. Announced 2003 Oct 26 [M03j]. Provisional designation S/2003 (22899) 1.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Jacobson, Seth A., Scheeres, Daniel J., & McMahon, Jay 2014, The Astrophysical Journal Formation of the Wide Asynchronous Binary Asteroid Population
- Merline, W. J., Tamblyn, P. M., Nesvorny, D., Durda, D. D., Chapman, C. R., Dumas, C., Storrs, A. D., Feldman, B., Owen, W. M., Close, L. M., & Menard, F. 2004, Bulletin of the American Astronomical Society Discovery of binaries among small asteroids in the Koronis dynamical family using the HST Advanced Camera for Surveys
- Merline, William 2004, HST Proposal Determination of orbits and colors for two new binaries in the Koronis asteroid family
- Merline, W. J., Tamblyn, P. M., Chapman, C. R., Nesvorny, D., Durda, D. D., Dumas, C., Storrs, A. D., Close, L. M., & Menard, F. 2003, International Astronomical Union Circular S/2003 (22899) 1
© 2003-2014, 2016 by Wm. Robert Johnston.
Last modified 21 June 2016.
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