(7615)
Asteroids with Satellites Database--Johnston's Archive
(7615) 1996 TA11
compiled by Wm. Robert Johnston
last updated 13 December 2022
--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:**2.4076026334 AUorbital period **P:**3.735815475 yr (= 1364.5066023 d)eccentricity **e:**0.211301099perihelion distance **q:**1.898873551 AUaphelion distance **Q:**2.9163317154 AUinclination **i:**3.5548803°argument of perihelion **ω:**235.154162°ascending node **Ω:**106.093987°mean anomaly **M:**52.4625851°perihelion passage **TP:2022 Aug 10.151268Epoch:2023 Feb 25data arc:1981-2022 (2871 obs.)Earth MOID:**0.891551 AUJupiter Tisserand invariant **TJ:**3.488 orbital data, secondary: semimajor axis **as:**7.1 km [*E]separation/primary radius **as/rp:**3.8 [*E]separation/Hill radius **as/rH:**0.013 [*E]orbital period **Ps:**0.7871 ± 0.0004 d [C22b]eccentricity es:?normalized ang. mom. αL:? | other data, system (combined): absolute mag. **H:**14.1 [MPC]slope parameter G: (0.15) [*A]effective diameter **dE:3.91 ± 0.21 km [M**]geometric albedo:**0.46 ± 0.124 [M**]color index U-B:?color index B-V:?color index J-H:0.162 ± 0.192 [LMP] taxonomic type:?mass m:?density ρ: (1.6 g/cm3) [*A]Hill radius **rH:**560 km [*E] other data, primary: diameter **dp:**3.77 ± 0.20 km [*D]rotation period **RPp:**3.3195 ± 0.0002 h [C22b]amplitude in mag., rotational **ΔM:**0.14 [C22b]amplitude in mag., mutual events **ΔM:**0.105 ±0.025 [C22b]pole direction Β, λ:? , ? other data, secondary: diameter **ds:**>1.05 ± 0.06 km [*D]diameter ratio **ds/dp:**>0.28 [C22b]component mag. difference ΔM:<2.8 [*D]rotation period RPs:? |
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-- (7615) 1996 TA11 --discovery and notes:
Primary discovered 1996 Oct 09 from Kushiro, Hokkaido, Japan by S. Ueda and H. Kaneda. Alternate designation(s): 1981 SG7, 1991 EN1, 1992 PL5. Linked to prediscovery observations from 1981 Sep 28.
Companion discovered 2022 Sep 28 by M. Conjat, D. Augustin, F. Manzini, R. Nicollerat, A. Wuensche, and R. Behrend using lightcurve observations from Nice Observatory, France; Deep Sky Chile Observatory, Chile; Stazione Astronomica di Sozzago, Italy; Valentines Observatory, Bex, Switzerland; Observatoire des Baronnies Provencales, France. Announced 2022 Dec 10 [C22b].
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© 2022 by Wm. Robert Johnston.
Last modified 13 December 2022.
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