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Asteroids with Satellites Database--Johnston's Archive
(54697) 2001 FA70
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:Mars crossing asteroid
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 2.383011875 AU | | orbital periodP: | 3.678657118 yr
(= 1343.654889 d) | | eccentricitye: | 0.331344919 | | perihelion distanceq: | 1.593413 AU | | aphelion distanceQ: | 3.172610751 AU | | inclinationi: | 13.0902187° | | argument of perihelionω: | 129.347018° | | ascending nodeΩ: | 168.479546° | | mean anomalyM: | 101.5919233° | | perihelion passageTP: | 2016 Aug 20.820877 | | Epoch: | 2017 Sep 04 | | data arc: | 1997-2016(842 obs.) | | Earth MOID: | 0.61412 AU | | Jupiter Tisserand invariantTJ: | 3.427 |
orbital data, secondary: | semimajor axisas: | 5.8 km[*E] | | orbital periodPs: | 0.6777± 0.0003d [W16#] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 15[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 3.46 km [*E] | | geometric albedo: | (0.16) [*A] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 420 km [*E] |
other data, primary: | diameterdp: | 3.4 km [*E] | | rotation periodRPp: | 2.7077± 0.0003h [W16#] | | amplitude in mag., rotationalΔM: | ? | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 0.65km [*E] | | diameter ratiods/dp: | >0.19± 0.02 [W16#] | | component mag. differenceΔM: | <3.61± 0.23 [*D] | | rotation periodRPs: | ? | |
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--(54697) 2001 FA70 --discovery and notes:
Primary discovered2001 Mar 19from Socorro, New Mexico, USAby LINEAR Program.Linked to prediscovery observations from 1997 Mar 15.Permanent number assigned 2003 Feb 16.
Companion discovered2016 Jun 17 by B. D. Warnerusinglightcurve observations from Palmer Divide Observatory, Colorado Springs, Colorado, USA.Announced2016 Sep [W16#].
--Links, more technical:
--Links, less technical:
--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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