+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   212099 (2005 EX139) Classification: Main-belt Asteroid          SPK-ID: 2212099 [ 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 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1654623802914603 5.6949e-08   a 2.619445678455715 3.393e-08 au q 2.186025961454253 1.3874e-07 au i 11.63490840442416 6.8578e-06 deg node 354.1374661456532 3.4298e-05 deg peri 224.2951663903278 5.0279e-05 deg M 190.7063121340952 4.5338e-05 deg tp 2459728.700187869095 (2022-May-29.20018787) 0.00020722 TDB period 1548.504678098343 4.24 3.0087e-05 8.237e-08 d yr n .2324823457699216 4.517e-09 deg/d Q 3.052865395457177 3.9544e-08 au   Orbit Determination Parameters    # obs. used (total)      234      data-arc span      10098 days (27.65 yr)      first obs. used      1992-03-04      last obs. used      2019-10-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .638      source      ORB      producer      Otto Matic      solution date      2019-Nov-07 23:43:13   Additional Information  Earth MOID = 1.19662 au   Jupiter MOID = 1.98085 au   T_jup = 3.357  [ hide covariance matrix ] Orbital Elements at Epoch 2457031.5 (2015-Jan-09.0) TDB Reference: JPL 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1651653146587947 5.6998e-08   q 2.187361559683035 1.3889e-07 au tp 2456632.501708187011 (2013-Dec-06.00170819) 0.00015797 TDB node 354.1751845960917 3.4268e-05 deg peri 224.476734556343 5.0255e-05 deg i 11.63964927335466 6.8598e-06 deg   Orbit Determination Parameters    # obs. used (total)      234      data-arc span      10098 days (27.65 yr)      first obs. used      1992-03-04      last obs. used      2019-10-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .638      source      ORB      producer      Otto Matic      solution date      2019-Nov-07 23:43:13   Additional Information  Jupiter MOID = 1.98085 au   T_jup = 3.357  Orbit Covariance (6×6)   e q tp node peri i e 3.248764709362613E-15 -7.784924490395302E-15 3.276660307221218E-12 1.954444063511224E-14 7.510270958793673E-13 -5.416561517785341E-15 q -7.784924490395302E-15 1.929108410081427E-14 -5.201472920837271E-12 -4.935315266439439E-14 -1.167184432984705E-12 1.344110582179003E-14 tp 3.276660307221218E-12 -5.201472920837271E-12 2.495526638661678E-8 5.949503112268719E-11 5.85978495154522E-9 -2.618474285081998E-11 node 1.954444063511224E-14 -4.935315266439439E-14 5.949503112268719E-11 1.174321875934262E-9 -1.136433513348817E-9 -5.415808068215017E-11 peri 7.510270958793673E-13 -1.167184432984705E-12 5.85978495154522E-9 -1.136433513348817E-9 2.525601851258256E-9 4.733357316529481E-11 i -5.416561517785341E-15 1.344110582179003E-14 -2.618474285081998E-11 -5.415808068215017E-11 4.733357316529481E-11 4.705637393548468E-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 16.1   n/a MPO494171   212099 (2005 EX139)          Discovered 2005-Mar-09 by Spacewatch at Kitt Peak Reference: 20090409/Numbers.arc Last Updated: 2009-04-10 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-27 05:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin