(489486) 2007 GS3

--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: NEA, Apollo (PHA) orbital data, primary (osculating elements) [JPL] : semimajor axis a: 1.0611815916 AU orbital period P: 1.0931620879 yr (= 399.2849936 d) eccentricity e: 0.129111834 perihelion distance q: 0.9241704897 AU aphelion distance Q: 1.1981926935 AU inclination i: 15.0912982° argument of perihelion ω: 61.149342° ascending node Ω: 215.4308761° mean anomaly M: 302.861517° perihelion passage TP: 2019 Jun 29.373719 Epoch: 2019 Apr 27 data arc: 2007-2019 (444 obs.) Earth MOID: 0.021594 AU Jupiter Tisserand invariant TJ: 5.768 orbital data, secondary: semimajor axis as: 3.2 km [*E] separation/primary radius as/rp: 6.6 [*E] separation/Hill radius as/rH: 0.044 [*E] orbital period Ps: 1.723 ± 0.004 d [P19d] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 19.4 [MPC] 19.21 ± 0.15 [P19d] slope parameter G: (0.12) [*A] effective diameter dE: 1.067 ± 0.414/0.216 km [N18a] geometric albedo: 0.02 ± 0.019/0.01 [N18a] color index U-B: ? color index B-V: ? color index V-R: 0.34 ± 0.011 [P19d] taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 72 km [*E] other data, primary: diameter dp: 0.97 ± 0.38/0.2 km [*D] rotation period RPp: 3.497 ± 0.001 h [P19d] amplitude in mag., rotational ΔM: 0.06 [P19d] amplitude in mag., mutual events ΔM: 0.265 ±0.055 [P19d] pole direction Β, λ: ? , ? other data, secondary: diameter ds: 0.45 km [*D] axial ratios a/b, b/c: 1.4;? [P19d] diameter ratio ds/dp: >0.46 [P19d] component mag. difference ΔM: 1.7 [*D] rotation period RPs: 41.36 ± 0.1 h [P19d]