+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   277322 (2005 SH224) Classification: Main-belt Asteroid          SPK-ID: 2277322 [ 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 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09803221511609489 6.9304e-08   a 2.35095409434904 1.7349e-08 au q 2.120484856843751 1.6143e-07 au i 2.640031551600956 8.1668e-06 deg node 184.9183507925641 0.00011229 deg peri 345.2612599339758 0.00011674 deg M 285.4415158174975 3.3603e-05 deg tp 2459473.183725960774 (2021-Sep-15.68372596) 0.00012441 TDB period 1316.632740354404 3.60 1.4575e-05 3.99e-08 d yr n .273424766805584 3.0267e-09 deg/d Q 2.581423331854329 1.905e-08 au   Orbit Determination Parameters    # obs. used (total)      199      data-arc span      7559 days (20.70 yr)      first obs. used      2000-04-05      last obs. used      2020-12-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55878      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 14:33:57   Additional Information  Earth MOID = 1.12595 au   Jupiter MOID = 2.3837 au   T_jup = 3.550  [ hide covariance matrix ] Orbital Elements at Epoch 2457283.5 (2015-Sep-18.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09733775253757339 6.9621e-08   q 2.122240795385967 1.6204e-07 au tp 2456840.572599027272 (2014-Jul-02.07259903) 0.00011291 TDB node 184.956225729905 0.00011225 deg peri 345.4360245135925 0.00011673 deg i 2.640129141627381 8.1696e-06 deg   Orbit Determination Parameters    # obs. used (total)      199      data-arc span      7559 days (20.70 yr)      first obs. used      2000-04-05      last obs. used      2020-12-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55878      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 14:33:57   Additional Information  Jupiter MOID = 2.3837 au   T_jup = 3.550  Orbit Covariance (6×6)   e q tp node peri i e 4.8470323500178E-15 -1.122922420459833E-14 3.124773126456091E-12 -1.439678276539214E-14 9.758553893085585E-13 1.027410434597599E-15 q -1.122922420459833E-14 2.625661586137043E-14 -6.806127323760797E-12 3.208268298922434E-14 -2.124618077576406E-12 -2.019413836525406E-15 tp 3.124773126456091E-12 -6.806127323760797E-12 1.274760727309401E-8 -1.488310901647465E-11 3.626926538031474E-9 4.278155573677552E-12 node -1.439678276539214E-14 3.208268298922434E-14 -1.488310901647465E-11 1.260024959715256E-8 -1.259097129282834E-8 1.966822324109353E-10 peri 9.758553893085585E-13 -2.124618077576406E-12 3.626926538031474E-9 -1.259097129282834E-8 1.362604252832159E-8 -1.95239128937721E-10 i 1.027410434597599E-15 -2.019413836525406E-15 4.278155573677552E-12 1.966822324109353E-10 -1.95239128937721E-10 6.674233349206902E-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 17.8   n/a MPO437262   277322 (2005 SH224)          Discovered 2005-Sep-29 by Mt. Lemmon Survey at Mount Lemmon Reference: 20110517/Numbers.arc Last Updated: 2011-05-20 [ show close-approach data ] Alternate Designations  2005 SH224 = 2007 EX30  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 05:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin