(20882)

Paulsanchez (original) (raw)

Asteroids with Satellites Database--Johnston's Archive

(20882) Paulsanchez

compiled by Wm. Robert Johnston
last updated 9 November 2020

--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:**2.3634077882 AUorbital period **P:**3.6333563425 yr (= 1327.1084681 d)eccentricity **e:**0.247037778perihelion distance **q:**1.779556779 AUaphelion distance **Q:**2.947258797 AUinclination **i:**2.3778571°argument of perihelion **ω:**358.181402°ascending node **Ω:**13.666526°mean anomaly **M:**58.781524°perihelion passage **TP:2018 Sep 22.307060Epoch:2019 Apr 27data arc:1949-2019 (1789 obs.)Earth MOID:**0.778896 AUJupiter Tisserand invariant **TJ:**3.507 orbital data, secondary: semimajor axis **as:**11 km [*E]separation/primary radius **as/rp:**5.4 [*E]separation/Hill radius **as/rH:**0.014 [*E]orbital period **Ps:**1.3671 ± 0.0008 d [W18e]eccentricity es:?normalized ang. mom. αL:?

other data, system (combined): absolute mag. H:14.4 [MPC]slope parameter G: (0.15) [*A]effective diameter dE:4.38 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:**760 km [*E] other data, primary: diameter **dp:**4.09 km [*E]rotation period **RPp:**2.5586 ± 0.0001 h [W18e]amplitude in mag., rotational **ΔM:**0.15 [W18e]pole direction Β, λ:? , ? other data, secondary: diameter **ds:**1.47 km [*E]diameter ratio **ds/dp:**0.36 ± 0.04 [W19c]component mag. difference **ΔM:**2.2 ± 0.2 [*D]rotation period RPs:?

-- (20882) Paulsanchez --discovery and notes:

Primary discovered 2000 Nov 03 from Socorro, New Mexico, USA by LINEAR Program. Alternate designation(s): 2000 VH57, 1999 JL6. Linked to prediscovery observations from 1949 Nov 21. Permanent number assigned 2001 Jan 09.

Named 2019 Aug 27 for Diego Paul Sanchez Lana (1976-) [MPC115893].

Companion discovered 2018 Sep 15 by B. D. Warner, A. Aznar Macias, M. Serra-Ricart, J. Licandro, and P. Pravec using lightcurve observations from CS3, Landers, California, USA; Canary Astrophysics Institute. Announced 2018 Nov 08 [W18e].

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--Links to ADS abstracts:

© 2018-2019, 2020 by Wm. Robert Johnston.
Last modified 9 November 2020.
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