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Asteroids with Satellites Database--Johnston's Archive
(99913) 1997 CZ5
compiled by Wm. Robert Johnston
last updated20 September 2014--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: | 2.293957933 AU | | orbital periodP: | 3.474452482 yr
(= 1269.0437690 d) | | eccentricitye: | 0.397212393 | | perihelion distanceq: | 1.38276941 AU | | aphelion distanceQ: | 3.205146452 AU | | inclinationi: | 24.902234° | | argument of perihelionω: | 169.191725° | | ascending nodeΩ: | 288.033698° | | mean anomalyM: | 357.525911° | | perihelion passageTP: | 2014 May 31.72146 | | Epoch: | 2014 May 23 | | data arc: | 1992-2014(728 obs.) | | Earth MOID: | 0.403455 AU | | Jupiter Tisserand invariantTJ: | 3.374 |
orbital data, secondary: | binary dynamical type: | A [M09a] | | semimajor axisas: | 11 km[*E] | | separation/primary radiusas/rp: | 3.2 [*E] | | separation/Hill radiusas/rH: | 0.015 [*E] | | orbital periodPs: | 0.6117d [H11a] | | eccentricityes: | ? | | normalized ang. mom.αL: | 0.84[M09a] |
| other data, system (combined):| absolute mag.H: | 13.4[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 6.89 km [*E] | | geometric albedo: | (0.16) [*A] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | S (SMASSII) [JPL] | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 730 km [*E] |
other data, primary: | diameterdp: | 6.77 km [*E] | | rotation periodRPp: | 2.83507± 0.00002h [H11a] | | amplitude in mag., rotationalΔM: | 0.19± 0.02 [H11a] | | amplitude in mag., mutual eventsΔM: | 0.038 ±0.02 [H11a] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 1.29km [*E] | | diameter ratiods/dp: | 0.19± 0.02 [H11a] | | component mag. differenceΔM: | 3.6± 0.2 [*D] | | rotation periodRPs: | ? | |
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--(99913) 1997 CZ5 --discovery and notes:
Primary discovered1997 Feb 07from Haleakala, Hawaii, USAby NEAT.Alternate designation(s): 1999 NQ54.Linked to prediscovery observations from 1992 Aug 02.Permanent number assigned 2005 Jun 22.
Companion discovered2010 Dec 31 by D. Higgins, P. Pravec, P. Kusnirak, K. Hornoch, J. Pollock, W. Cooney, J. Gross, D. Terrell, J. Oey, J. Brinsfield, D. E. Reichart, K. M. Ivarsen, J. B. Haislip, A. LaCluyze, and R. Durkeeusinglightcurve observations from Canberra, Australia; Ondrejov Observatory, Czech Republic; Appalachian State University, North Carolina, USA; Sonoita Research Observatory, Sonoita, Arizona, USA; Leura, New South Wales, Australia; Via Capote Observatory, Thousand Oaks, California, USA; University of North Carolina, Chapel Hill; Shed of Science Observatory, Minneapolis, Minnesota, USA.Announced2011 Feb 03 [H11a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Higgins, D., Pravec, P., Kusnirak, P., Hornoch, K., Pollock, J., Cooney, W., Gross, J., Terrell, D., Oey, J., Brinsfield, J., Reichart, D. E., Ivarsen, K. M., Haislip, J. B., Lacluyze, A., & Durkee, R. 2011, Central Bureau Electronic Telegrams(99913) 1997 CZ5
©2011-2012, 2014by Wm. Robert Johnston.
Last modified20 September 2014.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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