+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   243241 (2007 VX189) Classification: Outer Main-belt Asteroid          SPK-ID: 2243241 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1261889033106601 5.1617e-08   a 3.23028144566778 4.3826e-08 au q 2.822655772654189 1.6827e-07 au i 18.06757801590643 7.4755e-06 deg node 238.9726490907998 2.2377e-05 deg peri 71.23223815418632 4.0561e-05 deg M 146.2010444697319 3.5575e-05 deg tp 2458139.294200671260 (2018-Jan-20.79420067) 0.0002063 TDB period 2120.601045518065 5.81 4.3156e-05 1.182e-07 d yr n .1697631908467024 3.4548e-09 deg/d Q 3.637907118681371 4.9356e-08 au   Orbit Determination Parameters    # obs. used (total)      307      data-arc span      6360 days (17.41 yr)      first obs. used      2001-08-25      last obs. used      2019-01-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58899      source      ORB      producer      Otto Matic      solution date      2019-Jul-14 09:55:25   Additional Information  Earth MOID = 1.87007 au   Jupiter MOID = 1.67795 au   T_jup = 3.097  [ 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 14.9   n/a MPO460066   diameter diameter 7.568 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.041   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   243241 (2007 VX189)          Discovered 2007-Nov-14 by La Sagra at La Sagra Reference: 20100626/Numbers.arc Last Updated: 2010-06-28 [ show close-approach data ] Alternate Designations  2007 VX189 = 2005 JA157  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-14 08:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin