+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   249791 (2000 YK2) Classification: Main-belt Asteroid          SPK-ID: 2249791 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1250815290195839 4.3632e-08   a 2.305260325103075 1.5971e-08 au q 2.016914838850999 1.0646e-07 au i 5.144548138188085 5.2138e-06 deg node 252.5262099237693 4.6849e-05 deg peri 129.4747365813013 5.1425e-05 deg M 239.0178720203373 2.2057e-05 deg tp 2459430.132482641281 (2021-Aug-03.63248264) 8.0613e-05 TDB period 1278.434231020146 3.50 1.3286e-05 3.638e-08 d yr n .2815944624016617 2.9264e-09 deg/d Q 2.59360581135515 1.7969e-08 au   Orbit Determination Parameters    # obs. used (total)      327      data-arc span      7182 days (19.66 yr)      first obs. used      2000-11-21      last obs. used      2020-07-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49253      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 00:15:15   Additional Information  Earth MOID = 1.02496 au   Jupiter MOID = 2.85524 au   T_jup = 3.573  [ hide covariance matrix ] Orbital Elements at Epoch 2457561.5 (2016-Jun-22.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1248379090290739 4.3662e-08   q 2.017492612606131 1.0647e-07 au tp 2458153.099689142843 (2018-Feb-03.59968914) 7.4625e-05 TDB node 252.5349108732989 4.6859e-05 deg peri 129.7531936757326 5.1453e-05 deg i 5.143726518130063 5.2133e-06 deg   Orbit Determination Parameters    # obs. used (total)      327      data-arc span      7182 days (19.66 yr)      first obs. used      2000-11-21      last obs. used      2020-07-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49253      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 00:15:15   Additional Information  Jupiter MOID = 2.85524 au   T_jup = 3.573  Orbit Covariance (6×6)   e q tp node peri i e 1.906407461625632E-15 -4.613684842647121E-15 2.074090521346731E-13 -4.122892573034195E-15 1.080184543594742E-13 -9.797293549641024E-17 q -4.613684842647121E-15 1.133570826669956E-14 -7.900632310453163E-14 9.60444380142212E-15 -1.649470592040132E-13 9.226036038986488E-16 tp 2.074090521346731E-13 -7.900632310453163E-14 5.568910661995254E-9 -1.885467302600832E-11 1.589751846409918E-9 4.689096705427016E-12 node -4.122892573034195E-15 9.60444380142212E-15 -1.885467302600832E-11 2.195723341500981E-9 -2.191873865370778E-9 4.115206111388424E-12 peri 1.080184543594742E-13 -1.649470592040132E-13 1.589751846409918E-9 -2.191873865370778E-9 2.647375945058007E-9 -2.816268194162358E-12 i -9.797293549641024E-17 9.226036038986488E-16 4.689096705427016E-12 4.115206111388424E-12 -2.816268194162358E-12 2.717873669926546E-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 17.04   n/a E2021B55   249791 (2000 YK2)          Discovered 2000-Dec-19 by Spacewatch at Kitt Peak Reference: 20100923/Numbers.arc Last Updated: 2010-09-27 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-24 17:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin