+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   231051 (2005 GW60) Classification: Main-belt Asteroid          SPK-ID: 2231051 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1076416923839944 4.1921e-08   a 3.183684476414736 3.7512e-08 au q 2.840987291356802 1.2943e-07 au i 9.058200696937389 4.4718e-06 deg node 134.8835055379073 2.9993e-05 deg peri 111.4375594535945 3.8002e-05 deg M 189.6637541763787 2.5348e-05 deg tp 2459982.243483158332 (2023-Feb-06.74348316) 0.00015473 TDB period 2074.882255553316 5.68 3.6671e-05 1.004e-07 d yr n .1735038212585213 3.0665e-09 deg/d Q 3.526381661472669 4.155e-08 au   Orbit Determination Parameters    # obs. used (total)      489      data-arc span      7453 days (20.41 yr)      first obs. used      2000-05-27      last obs. used      2020-10-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58636      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 02:06:08   Additional Information  Earth MOID = 1.8435 au   Jupiter MOID = 1.60135 au   T_jup = 3.170  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.1   n/a MPO418232   diameter diameter 5.193 km 0.488 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 9.4 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Polishook, D.; Ofek, E.O.; Waszczak, A.; Kulkarni, S.R.; et al. (2012). Mon. Not. Royal Ast. Soc. 421, 2094-2108.] geometric albedo albedo 0.079   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   231051 (2005 GW60)          Discovered 2005-Apr-08 by Lulin at Lulin Reference: 20100130/Numbers.arc Last Updated: 2010-02-01 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 11:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin