+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17380 (1981 EB10) Classification: Main-belt Asteroid          SPK-ID: 2017380 [ 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 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0980478778539878 3.369e-08   a 2.339699699181227 8.1246e-09 au q 2.110297108860894 7.9446e-08 au i 4.511106225367009 3.8132e-06 deg node 203.9814986428118 4.473e-05 deg peri 339.9779974314804 4.8305e-05 deg M 32.8567657582699 1.84e-05 deg tp 2459081.194376000691 (2020-Aug-19.69437600) 6.668e-05 TDB period 1307.189665463067 3.58 6.8089e-06 1.864e-08 d yr n .2753999740905781 1.4345e-09 deg/d Q 2.56910228950156 8.9213e-09 au   Orbit Determination Parameters    # obs. used (total)      1384      data-arc span      14364 days (39.33 yr)      first obs. used      1981-02-09      last obs. used      2020-06-08      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53751      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:02:14   Additional Information  Earth MOID = 1.11193 au   Jupiter MOID = 2.39099 au   T_jup = 3.554  [ show covariance matrix ] [ 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 15.29   n/a E2021B10   diameter diameter 2.390 km 0.817 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.214   0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17380 (1981 EB10)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring Reference: 20001013/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1981 EB10 = 1993 RG19 = 1997 TB17  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 18:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin