+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   86949 (2000 HE87) Classification: Main-belt Asteroid          SPK-ID: 2086949 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06926198987930955 4.0835e-08   a 2.318521313647986 1.0579e-08 au q 2.157935913887135 9.5785e-08 au i 8.128247965624828 4.3358e-06 deg node 98.82055504521996 2.9438e-05 deg peri 133.9050008184896 4.2348e-05 deg M 300.3779867156882 3.2572e-05 deg tp 2459414.059650775583 (2021-Jul-18.55965078) 0.00011732 TDB period 1289.481351671155 3.53 8.8259e-06 2.416e-08 d yr n .2791820133989867 1.9109e-09 deg/d Q 2.479106713408836 1.1312e-08 au   Orbit Determination Parameters    # obs. used (total)      674      data-arc span      7624 days (20.87 yr)      first obs. used      2000-04-30      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5593      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 14:21:37   Additional Information  Earth MOID = 1.15238 au   Jupiter MOID = 2.52752 au   T_jup = 3.563  [ hide covariance matrix ] Orbital Elements at Epoch 2457116.5 (2015-Apr-04.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0695390449292652 4.0785e-08   q 2.157372187561438 9.5695e-08 au tp 2456836.345732652897 (2014-Jun-27.84573265) 0.00011038 TDB node 98.86216673165679 2.945e-05 deg peri 134.2242790790226 4.2303e-05 deg i 8.126611069805991 4.3346e-06 deg   Orbit Determination Parameters    # obs. used (total)      674      data-arc span      7624 days (20.87 yr)      first obs. used      2000-04-30      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5593      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 14:21:37   Additional Information  Jupiter MOID = 2.52752 au   T_jup = 3.563  Orbit Covariance (6×6)   e q tp node peri i e 1.663400061315201E-15 -3.882499383228033E-15 -3.7115467239044E-14 3.24924947508809E-16 4.519587269126312E-15 -2.632083873071622E-16 q -3.882499383228033E-15 9.157471207685794E-15 4.211375741972878E-13 -1.500702674548347E-15 8.520370242925043E-14 8.455661555651988E-16 tp -3.7115467239044E-14 4.211375741972878E-13 1.218309274519602E-8 -9.425015747463784E-13 3.367752296409656E-9 3.920983818763327E-12 node 3.24924947508809E-16 -1.500702674548347E-15 -9.425015747463784E-13 8.67326625568395E-10 -8.584160018072581E-10 -2.104692571343391E-11 peri 4.519587269126312E-15 8.520370242925043E-14 3.367752296409656E-9 -8.584160018072581E-10 1.789545428379093E-9 2.188277755650965E-11 i -2.632083873071622E-16 8.455661555651988E-16 3.920983818763327E-12 -2.104692571343391E-11 2.188277755650965E-11 1.878906768249922E-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 16.04   n/a E2021B10   86949 (2000 HE87)          Discovered 2000-Apr-30 by Spacewatch at Kitt Peak Reference: 20040830/Numbers.arc Last Updated: 2004-09-06 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-17 22:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin