Asteroids with Satellites Database--Johnston's Archive

(26074) Carlwirtz

compiled by Wm. Robert Johnston
last updated 21 September 2014

--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: 1.811005685 AU
orbital period P: 2.437181779 yr
(= 890.1806450 d)
eccentricity e: 0.088958120
perihelion distance q: 1.64990202 AU
aphelion distance Q: 1.972109346 AU
inclination i: 31.613570°
argument of perihelion ω: 73.384980°
ascending node Ω: 102.827532°
mean anomaly M: 190.662131°
perihelion passage TP: 2015 Jul 15.7258
Epoch: 2014 May 23
data arc: 1977-2013 (453 obs.)
Earth MOID: 0.753067 AU
Jupiter Tisserand invariant TJ: 3.874


orbital data, secondary:
semimajor axis as: 6.1 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: 14.8 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 3.62 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: 460 km [*E]

other data, primary:
diameter dp: 3.62 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: ?
diameter ratio ds/dp: ?
component mag. difference ΔM: ?
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) [MPC52769].

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

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2014 by Wm. Robert Johnston.
Last modified 21 September 2014.
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