+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   437853 (1999 VR111) Classification: Main-belt Asteroid          SPK-ID: 2437853 [ 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 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .294726997499656 1.1902e-07   a 2.669333518413556 3.1028e-08 au q 1.882608865206336 3.2973e-07 au i 12.05631600885036 9.0091e-06 deg node 240.7274609234001 2.7798e-05 deg peri 171.3522781676297 3.375e-05 deg M 264.6429056024439 1.7452e-05 deg tp 2459422.442425658668 (2021-Jul-26.94242566) 8.3124e-05 TDB period 1592.951989537692 4.36 2.7774e-05 7.604e-08 d yr n .2259955117068403 3.9404e-09 deg/d Q 3.456058171620776 4.0173e-08 au   Orbit Determination Parameters    # obs. used (total)      171      data-arc span      7550 days (20.67 yr)      first obs. used      1999-10-13      last obs. used      2020-06-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59467      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 09:33:45   Additional Information  Earth MOID = .894868 au   Jupiter MOID = 1.93117 au   T_jup = 3.288  [ hide covariance matrix ] Orbital Elements at Epoch 2457254.5 (2015-Aug-20.0) TDB Reference: JPL 10 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .298416249076657 1.2021e-07   q 1.868499252367988 3.3378e-07 au tp 2457830.935761455551 (2017-Mar-18.43576146) 6.0738e-05 TDB node 240.7980233165839 2.7725e-05 deg peri 171.2003749502641 3.3427e-05 deg i 12.08690845745115 9.0315e-06 deg   Orbit Determination Parameters    # obs. used (total)      171      data-arc span      7550 days (20.67 yr)      first obs. used      1999-10-13      last obs. used      2020-06-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59467      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 09:33:45   Additional Information  Jupiter MOID = 1.93117 au   T_jup = 3.288  Orbit Covariance (6×6)   e q tp node peri i e 1.445132854737452E-14 -4.006655202174964E-14 -3.574127835461334E-13 -1.714150820703464E-13 1.103117877597488E-12 -5.470864482156889E-14 q -4.006655202174964E-14 1.114067881050694E-13 1.786126727535516E-12 4.786341913404806E-13 -2.900426853232915E-12 1.588671289014922E-13 tp -3.574127835461334E-13 1.786126727535516E-12 3.689067304806884E-9 7.117262711827599E-12 9.485088659125819E-10 3.117010137020153E-11 node -1.714150820703464E-13 4.786341913404806E-13 7.117262711827599E-12 7.686612744343391E-10 -7.619304451519604E-10 -1.089023842041716E-11 peri 1.103117877597488E-12 -2.900426853232915E-12 9.485088659125819E-10 -7.619304451519604E-10 1.11737401713711E-9 1.497862953853217E-11 i -5.470864482156889E-14 1.588671289014922E-13 3.117010137020153E-11 -1.089023842041716E-11 1.497862953853217E-11 8.156853623943135E-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 16.8   n/a MPO472433   437853 (1999 VR111)          Discovered 1999-Nov-09 by LINEAR at Socorro Reference: Last Updated: 2015-07-06 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 07:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin