(26074)

Carlwirtz (original) (raw)

Asteroids with Satellites Database--Johnston's Archive

(26074) Carlwirtz

compiled by Wm. Robert Johnston
last updated 9 October 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:_Mars crossing asteroid, Hungaria _orbital data, primary (osculating elements)_[JPL] :semimajor axis **a:**1.81129147 AUorbital period **P:**2.4377587001 yr (= 890.3913652 d)eccentricity **e:**0.088902238perihelion distance **q:**1.650263604 AUaphelion distance **Q:**1.9723193356 AUinclination **i:**31.6078398°argument of perihelion **ω:**73.465471°ascending node **Ω:**102.7997427°mean anomaly **M:**160.349263°perihelion passage **TP:2020 May 30.406670Epoch:2021 Jul 01data arc:1977-2021 (1618 obs.)Earth MOID:**0.754194 AUJupiter Tisserand invariant **TJ:**3.874 orbital data, secondary: semimajor axis **as:**5.4 km [*E]separation/primary radius **as/rp:**3.4 [*E]separation/Hill radius **as/rH:**0.013 [*E]orbital period **Ps:**0.6713 ± 0.0008 d [W13a]eccentricity es:?normalized ang. mom. αL:? other data, system (combined): absolute mag. H:15.01 [MPC]slope parameter G: (0.15) [*A]effective diameter dE:3.3 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:**410 km [*E] other data, primary: diameter **dp:**3.2 km [*E]rotation period **RPp:**2.4593 ± 0.0003 h [W13a]amplitude in mag., rotational **ΔM:**0.11 ± 0.01 [W13a]amplitude in mag., mutual events **ΔM:**0.09 [W13a]pole direction Β, λ:? , ? other data, secondary: diameter **ds:**>0.8 km [*E]diameter ratio **ds/dp:**>0.25 [*E]component mag. difference ΔM:<3.0 [*E]rotation period RPs:?

-- (26074) Carlwirtz --discovery and notes:

Primary discovered 1977 Oct 08 from European Southern Observatory, La Silla, Chile by H.-E. Schuster. Alternate designation(s): 1977 TD, 1996 KH. Permanent number assigned 2001 Jul 05.

Named 2004 Sep 28 for Carl Wilhelm Wirtz (1875-1939) [MPC052769].

Companion discovered 2013 Jun 06 by B. D. Warner using lightcurve observations from Palmer Divide Observatory, Colorado Springs, Colorado, USA. Announced 2013 Sep [W13a].

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--Links to ADS abstracts:

© 2014, 2021 by Wm. Robert Johnston.
Last modified 9 October 2021.
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