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Asteroids with Satellites Database--Johnston's Archive
(26471) Tracybecker
compiled by Wm. Robert Johnston
last updated21 June 2016--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: | 1.917977412 AU | | orbital periodP: | 2.656277445 yr
(= 970.2053366 d) | | eccentricitye: | 0.154476722 | | perihelion distanceq: | 1.62169455 AU | | aphelion distanceQ: | 2.214260275 AU | | inclinationi: | 19.6937661° | | argument of perihelionω: | 58.829546° | | ascending nodeΩ: | 268.761803° | | mean anomalyM: | 286.265853° | | perihelion passageTP: | 2014 Dec 07.71461 | | Epoch: | 2014 May 23 | | data arc: | 1951-2013(716 obs.) | | Earth MOID: | 0.668512 AU | | Jupiter Tisserand invariantTJ: | 3.842 |
orbital data, secondary: | semimajor axisas: | 18 km[*E] | | separation/primary radiusas/rp: | 6.3 [*E] | | separation/Hill radiusas/rH: | 0.025 [*E] | | orbital periodPs: | 1.637± 0.0004d [W10c] | | eccentricityes: | ? | | normalized ang. mom.αL: | ? |
| other data, system (combined):| absolute mag.H: | 13.2[MPC] | | slope parameterG: | (0.15) [*A] | | effective diameterdE: | 6.05± 0.44 km [U11a] | | geometric albedo: | 0.304± 0.046[U11a] | | color indexU-B: | ? | | color indexB-V: | ? | | taxonomic type: | ? | | massm: | ? | | densityρ: | (1.6 g/cm3) [*A] | | Hill radiusrH: | 730 km [*E] |
other data, primary: | diameterdp: | 5.69± 0.41 km [*D] | | rotation periodRPp: | 2.687± 0.000h [W10c] | | amplitude in mag., rotationalΔM: | 0.22 [W09e] | | pole directionΒ, λ: | ?,? |
other data, secondary: | diameterds: | 2.05± 0.19km [*D] | | diameter ratiods/dp: | 0.36± 0.02 [W10c] | | component mag. differenceΔM: | 2.2± 0.1 [*D] | | rotation periodRPs: | ? | |
|
--(26471) Tracybecker --discovery and notes:
Primary discovered2000 Jan 08from Socorro, New Mexico, USAby LINEAR.Alternate designation(s):2000 AS152,1951 YZ1.Linked to prediscovery observations from 1951 Dec 27.Permanent number assigned 2001 Jul 05.
Companion discovered2009 Jul 13 by B. D. Warner, A. W. Harris, and D. Prayusinglightcurve observations from Palmer Divide Observatory, Colorado Springs, Colorado, USA; Space Science Institute, La Canada, California, USA; Carbuncle Hill Observatory, West Brookfield, Massachusetts, USA.Announced2009 Jul 20 [W09e].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Warner, Brian D. 2013, Minor Planet BulletinSeeing Double Old and New: Observations and Lightcurve Analysis at the Palmer Divide Observatory of Six Binary Asteroids
- Warner, Brian D., Pravec, Petr, Kusnirak, Peter, Hornoch, K., Harris, Alan, Stephens, Robert D., Casulli, Silvano, Cooney, Walter R., Jr., Gross, John, Terrell, Dirk, Durkee, Russ, Gajdos, Stefan, Galad, Adrian, Kornos, Leonard, Toth, Juraj, Vilagi, Josef, Husarik, Marek, Marchis, Franck, Reiss, A. E., Polishook, David, Roy, Rene, Behrend, Raoul, Pollock, Joseph, Reichart, Daniel, Ivarsen, Kevin, Haislip, Josh, Lacluyze, Aaron, Nysewander, Melissa, Pray, Donald P., & Vachier, Fred 2010, Minor Planet BulletinA Trio of Hungaria Binary Asteroids
- Reiss, A. E., Marchis, F., & Emery, J. P. 2009, AGU Fall Meeting AbstractsVisible-Wavelength Integrated Spectroscopy of Binary Asteroids
- Warner, B. D., Harris, A. W., & Pray, D. 2009, Central Bureau Electronic Telegrams(26471) 2000 AS152
- Warner, Brian D. 2008, Minor Planet BulletinAsteroid Lightcurve Analysis at the Palmer Divide Observatory: December 2007 - March 2008
©2009-2014, 2016by Wm. Robert Johnston.
Last modified21 June 2016.Return toHome. Return toAstronomy and Space. Return toAsteroids with Satellites.
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