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Asteroids with Satellites Database--Johnston's Archive
(2577) Litva,second component, and S/2012 (2577) 1
compiled by Wm. Robert Johnston
last updated21 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, Hungaria
orbital data, primary (osculating elements)[JPL]: | semimajor axisa: | 1.904439611 AU | | orbital periodP: | 2.628203632 yr
(= 959.9513767 d) | | eccentricitye: | 0.137937478 | | perihelion distanceq: | 1.64174601 AU | | aphelion distanceQ: | 2.167133209 AU | | inclinationi: | 22.9078761° | | argument of perihelionω: | 283.982228° | | ascending nodeΩ: | 182.609107° | | mean anomalyM: | 26.575021° | | perihelion passageTP: | 2014 Mar 13.13686 | | Epoch: | 2014 May 23 | | data arc: | 1934-2014(864 obs.) | | Earth MOID: | 0.759072 AU | | Jupiter Tisserand invariantTJ: | 3.836 |
orbital data, second component: | binary dynamical type: | A [L14c] | | semimajor axisas: | 21 km[*E] | | separation/primary radiusas/rp: | 11 [*E] | | separation/Hill radiusas/rH: | 0.041 [*E] | | orbital periodPs: | 1.495± 0.0004d [W11a] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
orbital data, S/2012 (2577) 1: | binary dynamical type: | A [L14c] | | semimajor axisas: | 378 km[M13b] | | separation/primary radiusas/rp: | 190 [*E] | | separation/Hill radiusas/rH: | 0.734 [*E] | | orbital periodPs: | 214d [M13b] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 13.18[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 4.4 km [*D] | | geometric albedo: | 0.48[*D] | | color indexU-B: | 0.34[JPL] | | color indexB-V: | 0.787[JPL] | | taxonomic type: | EU (Tholen) [JPL] | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 520 km [*E] |
other data, primary: | diameterdp: | 4 km [M13b] | | rotation periodRPp: | 2.813± 0.000h [W11a] | | amplitude in mag., rotationalΔM: | 0.24± 0.02 [W09c] | | amplitude in mag., mutual eventsΔM: | 0.14 ±0.01 [W09c] | | pole directionΒ, λ: | ?,? |
other data, second component: | diameterds: | 1.4km [M13b] | | diameter ratiods/dp: | 0.35± 0.02 [W09b] | | component mag. differenceΔM: | 2.3± 0.1 [*D] | | rotation periodRPs: | 5.6842± 0.0002h [W09c] | |
other data, S/2012 (2577) 1: | diameterds: | 1.2km [M13b] | | diameter ratiods/dp: | 0.3 [M13b] | | component mag. differenceΔM: | 2.6 [* D] | | rotation periodRPs: | ? | |
|
--(2577) Litva --discovery and notes:
Primary discovered1975 Mar 12from Nauchnyj, Crimea, Ukraine, USSRby N. S. Chernykh.Alternate designation(s):1975 EE3, 1934 VY, 1954 JD, 1976 SA2.Linked to prediscovery observations from 1934 Nov 03.Permanent number assigned 1982.
Named 1982 Dec 01 for Lithuania [MPC7472].
Second component discovered2009 Feb 28 by B. D. Warner, P. Pravec, A. W. Harris, D. Higgins, C. Bembrick, and J. Brinsfieldusinglightcurve observations from Palmer Divide Observatory, Colorado Springs, Colorado, USA; Ondrejov Observatory, Czech Republic; Space Science Institute, La Canada, California, USA; Hunters Hill Observatory, Ngunnawal, ACT, Australia; Mt. Tarana Observatory, Bathurst, New South Wales, Australia; Via Capote Observatory, Thousand Oaks, California, USA.Announced2009 Mar 11 [W09b].
Third component discovered2012 Jun 22 by W. J. Merline, P. M. Tamblyn, B. D. Warner, P. Pravec, J. P. Tamblyn, C. Neyman, A. R. Conrad, W. M. Owen, B. Carry, J. D. Drummond, C. R. Chapman, B. L. Enke, W. M. Grundy, C. Veillet, S. B. Porter, C. Arcidiacono, J. C. Christou, D. D. Durda, A. W. Harris, H. A. Weaver, C. Dumas, D. Terrell, and P. Maleyusingadaptive optics telescope observations from W. M. Keck II Telescope, Mauna Kea, Hawaii, USA.Announced2013 Dec 22 [M13b].Provisional designation S/2012 (2577) 1.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Lust, N. B. & Britt, D. T. 2014, Lunar and Planetary Science ConferenceObservations and Analysis of 2577 Litva
- Merline, W. J., Tamblyn, P. M., Warner, B. D., Pravec, P., Tamblyn, J. P., Neyman, C., Conrad, A. R., Owen, W. M., Carry, B., Drummond, J. D., Chapman, C. R., Enke, B. L., Grundy, W. M., Veillet, C., Porter, S. B., Arcidiacono, C., Christou, J. C., Durda, D. D., Harris, A. W., Weaver, H. A., Dumas, C., Terrell, D., & Maley, P. 2013, International Astronomical Union CircularS/2012 (2577) 1
- Green, D. W. E. 2013, Central Bureau Electronic TelegramsS/2012 (2577) 1
- Warner, B. D. & Pravec, P. 2013, Central Bureau Electronic TelegramsS/2012 (2577) 1
- Green, D. W. E. 2013, Central Bureau Electronic TelegramsS/2012 (2577) 1
- Merline, W. J., Tamblyn, P. M., Warner, B. D., Pravec, P., Tamblyn, J. P., Neyman, C., Keck Observatory, W. M., Conrad, A. R., Owen, W. M., Carry, B., Drummond, J. D., Chapman, C. R., Enke, B. L., Grundy, W. M., Veillet, C., Porter, S. B., Arcidiacono, C., Christou, J. C., Durda, D. D., Harris, A. W., Weaver, H. A., Dumas, C., Terrell, D., & Maley, P. 2013, Central Bureau Electronic TelegramsS/2012 (2577) 1
- Sanchez, Juan A., Michelsen, René, Reddy, Vishnu, & Nathues, Andreas 2013, IcarusSurface composition and taxonomic classification of a group of near-Earth and Mars-crossing asteroids
- Warner, Brian D. 2011, Minor Planet BulletinA Quartet of Known and Suspected Hungaria Binary Asteroids
- Warner, Brian D., Pravec, Petr, Harris, Alan W., Higgins, David, Bembrick, Colin, Brinsfield, James W., Pray, Donald P., Pollock, Joseph, Reichart, Daniel, Ivarsen, Kevin, Haislip, Josh, Lacluyze, Aaron, & Galad, Adrian 2009, Minor Planet Bulletin2577 Litva: A Hungaria Binary
- Warner, B. D., Pravec, P., Harris, A. W., Higgins, D., Bembrick, C., & Brinsfield, J. 2009, Central Bureau Electronic Telegrams(2577) Litva
- Stephens, Robert D. 2004, Minor Planet BulletinPhotometry of 1196 Sheba, 1341 Edmee, 1656 Suomi, 2577 Litva, and 2612 Kathryn
©2009-2014, 2014by Wm. Robert Johnston.
Last modified21 September 2014.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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