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Asteroids with Satellites Database--Johnston's Archive
(1016) Anitra
compiled by Wm. Robert Johnston
last updated27 May 2019--Orbital and physical data--
(Seethis page for definitions of quantities; source codes in brackets, seethis 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 axisa: | 2.2195521942 AU | | orbital periodP: | 3.30672473 yr
(= 1207.8040184 d) | | eccentricitye: | 0.127938491 | | perihelion distanceq: | 1.935586036 AU | | aphelion distanceQ: | 2.50351835236 AU | | inclinationi: | 6.0352086° | | argument of perihelionω: | 53.320283° | | ascending nodeΩ: | 8.858843° | | mean anomalyM: | 176.008388° | | perihelion passageTP: | 2016 Jan 22.489895 | | Epoch: | 2017 Sep 04 | | data arc: | 1924-2017(1851 obs.) | | Earth MOID: | 0.955056 AU | | Jupiter Tisserand invariantTJ: | 3.633 |
orbital data, secondary: | semimajor axisas: | ? | | orbital periodPs: | ? | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 11.9[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 9.54± 0.08 km [M11b] | | geometric albedo: | 0.308± 0.048[M11b] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | S (SMASSII) [JPL] | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 1500 km [*E] |
other data, primary: | diameterdp: | 9.63± 0.08 km [*D] | | rotation periodRPp: | 5.92951h [JPL] | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | >3.66km [*D] | | diameter ratiods/dp: | >0.38 [P16d] | | component mag. differenceΔM: | <2.1 [*D] | | rotation periodRPs: | ? | |
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--(1016) Anitra --discovery and notes:
Primary discovered1924 Jan 31from Heidelberg, Germanyby K. Reinmuth.Alternate designation(s):1924 QG, 1929 TE1.Permanent number assigned 1924.
Named - for the character in Peer Gynt.
Companion discovered2016usinglightcurve observations.Announced2016 Jun.
--Links, more technical:
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--Links to ADS abstracts:
©2017, 2019by Wm. Robert Johnston.
Last modified27 May 2019.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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