+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1262467603178031 4.9967e-08   a 3.230141517213352 3.9527e-08 au q 2.822346615297133 1.5917e-07 au i 18.06535489027475 5.772e-06 deg node 238.9515266739268 1.9687e-05 deg peri 71.38534022356768 3.4718e-05 deg M 213.2585718673637 3.3377e-05 deg tp 2460260.832796444622 (2023-Nov-12.33279644) 0.00020506 TDB period 2120.463257579947 5.81 3.8922e-05 1.066e-07 d yr n .1697742220777089 3.1163e-09 deg/d Q 3.63793641912957 4.4517e-08 au   Orbit Determination Parameters    # obs. used (total)      361      data-arc span      7146 days (19.56 yr)      first obs. used      2001-08-25      last obs. used      2021-03-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5556      source      ORB      producer      Otto Matic      solution date      2021-May-04 11:07:21   Additional Information  Earth MOID = 1.86955 au   Jupiter MOID = 1.67689 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 14.95   n/a MPCxxxxx   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 ] 2021-Jul-28 12:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin