(5772)
Asteroids with Satellites Database--Johnston's Archive
(5772) Johnlambert
compiled by Wm. Robert Johnston
last updated 25 September 2021
--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:**2.5551683175 AUorbital period **P:**4.0844094352 yr (= 1491.8587218 d)eccentricity **e:**0.128357743perihelion distance **q:**2.227192678 AUaphelion distance **Q:**2.883143957 AUinclination **i:**12.23462757°argument of perihelion **ω:**8.1386707°ascending node **Ω:**275.2552603°mean anomaly **M:**15.3433957°perihelion passage **TP:2021 Apr 28.416170Epoch:2021 Jul 01data arc:1955-2021 (2512 obs.)Earth MOID:**1.21111 AUJupiter Tisserand invariant **TJ:**3.395 orbital data, secondary: semimajor axis **as:**14 km [*E]separation/primary radius **as/rp:**3.6 [*E]separation/Hill radius **as/rH:**0.010 [*E]orbital period **Ps:**0.7492 ± 0.0004 d [B21e]eccentricity es:?normalized ang. mom. αL:? | other data, system (combined): absolute mag. H:13.07 [MPC]slope parameter G: (0.15) [*A]effective diameter dE:8 km [*E]geometric albedo: (0.16 ) [*A]color index U-B:?color index B-V:?taxonomic type:?mass m:?density ρ: (1.6 g/cm3) [*A]Hill radius **rH:**1400 km [*E] other data, primary: diameter **dp:**7.81 km [*E]rotation period **RPp:**3.0782 ± 0.0002 h [B21e]amplitude in mag., rotational **ΔM:**0.17 [B21e]amplitude in mag., mutual events **ΔM:**0.05 [B21e]pole direction Β, λ:? , ? other data, secondary: diameter **ds:**>1.72 km [*E]diameter ratio **ds/dp:**>0.22 [B21e]component mag. difference ΔM:<3.3 [*D]rotation period RPs:? |
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-- (5772) Johnlambert --discovery and notes:
Primary discovered 1988 Jun 15 from Palomar Observatory, California, USA by E. F. Helin. Alternate designation(s): 1988 LB, 1984 MA. Linked to prediscovery observations from 1955 Mar 24. Permanent number assigned 1993 Nov 29.
Named 2000 Jan 24 for John V. Lambert (1945-) [MPC039195].
Companion discovered 2021 Aug 08 by V. Benishek, P. Pravec using lightcurve observations from Sopot Observatory, Serbia. Announced 2021 Sep 19 [B21e].
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--Links to ADS abstracts:
© 2021 by Wm. Robert Johnston.
Last modified 25 September 2021.
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