+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   359863 (2011 VR4) Classification: Main-belt Asteroid          SPK-ID: 2359863 [ 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 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05377708953854129 5.8875e-08   a 3.060662192192539 4.3022e-08 au q 2.896068687435773 1.7789e-07 au i 9.851188217242125 6.6562e-06 deg node 316.5396674932878 3.8798e-05 deg peri 137.2212284599217 7.9423e-05 deg M 174.3287511193857 6.8678e-05 deg tp 2458053.416995514739 (2017-Oct-26.91699551) 0.00036902 TDB period 1955.786864905612 5.35 4.1237e-05 1.129e-07 d yr n .1840691368061591 3.8811e-09 deg/d Q 3.225255696949305 4.5336e-08 au   Orbit Determination Parameters    # obs. used (total)      146      data-arc span      6349 days (17.38 yr)      first obs. used      2001-12-20      last obs. used      2019-05-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54975      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 00:46:35   Additional Information  Earth MOID = 1.92149 au   Jupiter MOID = 1.87836 au   T_jup = 3.209  [ hide covariance matrix ] Orbital Elements at Epoch 2457373.5 (2015-Dec-17.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05596107575978826 5.9043e-08   q 2.886526708367239 1.7926e-07 au tp 2458049.965903724407 (2017-Oct-23.46590372) 0.00035244 TDB node 316.6127934612728 3.8843e-05 deg peri 136.2044472724359 7.6762e-05 deg i 9.848421957823589 6.6546e-06 deg   Orbit Determination Parameters    # obs. used (total)      146      data-arc span      6349 days (17.38 yr)      first obs. used      2001-12-20      last obs. used      2019-05-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54975      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 00:46:35   Additional Information  Jupiter MOID = 1.87836 au   T_jup = 3.209  Orbit Covariance (6×6)   e q tp node peri i e 3.486122394698894E-15 -1.030693559660334E-14 -1.674410337338239E-13 -5.242675943361613E-15 -1.258621076880325E-13 -6.230993849582115E-16 q -1.030693559660334E-14 3.21349253729823E-14 2.840639224510821E-12 1.654587897278923E-14 6.944581493380324E-13 5.622214649733146E-15 tp -1.674410337338239E-13 2.840639224510821E-12 1.242152691859263E-7 5.21720561334578E-11 2.336777270510252E-8 -8.73859542996094E-12 node -5.242675943361613E-15 1.654587897278923E-14 5.21720561334578E-11 1.508757069081174E-9 -1.475580049719468E-9 7.434139256548473E-12 peri -1.258621076880325E-13 6.944581493380324E-13 2.336777270510252E-8 -1.475580049719468E-9 5.892369051224023E-9 -9.361247292081755E-12 i -6.230993849582115E-16 5.622214649733146E-15 -8.73859542996094E-12 7.434139256548473E-12 -9.361247292081755E-12 4.428331747309402E-11 [ 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 16.0   n/a MPO437519   359863 (2011 VR4)          Discovered 2008-Feb-12 by Mt. Lemmon Survey at Mount Lemmon Reference: 20130327/Numbers.arc Last Updated: 2013-03-29 [ show close-approach data ] Alternate Designations  2011 VR4 = 2013 CR185  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 17:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin