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Asteroids with Satellites Database--Johnston's Archive
(5474) Gingasen
compiled by Wm. Robert Johnston
last updated29 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: | 2.382913175 AU | | orbital periodP: | 3.678498048 yr
(= 1343.571412 d) | | eccentricitye: | 0.067449239 | | perihelion distanceq: | 2.222187495 AU | | aphelion distanceQ: | 2.543638855 AU | | inclinationi: | 6.145410296° | | argument of perihelionω: | 256.9426598° | | ascending nodeΩ: | 247.0358836° | | mean anomalyM: | 257.3402528° | | perihelion passageTP: | 2015 Jun 10.1408 | | Epoch: | 2014 May 23 | | data arc: | 1971-2013(1123 obs.) | | Earth MOID: | 1.24441 AU | | Jupiter Tisserand invariantTJ: | 3.526 |
orbital data, secondary: | semimajor axisas: | ? | | orbital periodPs: | ? | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 13[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 5.05± 0.48 km [M12b] | | geometric albedo: | 0.48± 0.109[M12b] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 790 km [*E] |
other data, primary: | diameterdp: | 4.14± 0.67 km [*D] | | rotation periodRPp: | 3.6242± 0.0003h [H08a] | | amplitude in mag., rotationalΔM: | 0.18± 0.02 [H08a] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 2.9± 0.87km [*D] | | diameter ratiods/dp: | 0.7± 0.2 [W17a] | | component mag. differenceΔM: | 0.77± 0.64 [*D] | | rotation periodRPs: | 3.1095± 0.0009h [H08a] | |
|
--(5474) Gingasen --discovery and notes:
Primary discovered1988 Dec 03from Kitami, Hokkaido, Japanby T. Fujii and K. Watanabe.Alternate designation(s):1988 XE1, 1955 YK, 1971 BO2.Linked to prediscovery observations from 1971 Jan 27.Permanent number assigned 1993 Mar 08.
Named 1996 Apr 04 for a railroad in Hokkaido, Japan [MPC026930].
Companion discovered2008 Mar 07usinglightcurve observations.Announced2008 Oct .
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Higgins, David, Pravec, Petr, Kusnirak, Peter, Hornoch, Kamil, Pray, Donald P., Vilagi, Jozef, Kornos, Leonard, Gajdos, Sefan, Husarik, Marek, Pikler, Michal, & Cervak, Gabriel 2008, Minor Planet BulletinAsteroid Lightcurve Analysis of Suspected Binary Asteroids
- Sada, Pedro V. 2008, Minor Planet BulletinCCD Photometry of Three Short-period Asteroids from the Universidad de Monterry Observatory
©2011-2014, 2019by Wm. Robert Johnston.
Last modified29 May 2019.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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