+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70007 (1998 XX40) Classification: Main-belt Asteroid          SPK-ID: 2070007 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09531614367038672 3.8739e-08   a 3.180488765878415 2.1157e-08 au q 2.877336841727897 1.3012e-07 au i 12.932858774201 4.236e-06 deg node 295.4088682147567 2.2939e-05 deg peri 124.4233855633705 3.6446e-05 deg M 299.5905542278469 2.7881e-05 deg tp 2459348.149473703514 (2021-May-13.64947370) 0.00016056 TDB period 2071.758959771104 5.67 2.0673e-05 5.66e-08 d yr n .1737653882475663 1.7339e-09 deg/d Q 3.483640690028933 2.3174e-08 au   Orbit Determination Parameters    # obs. used (total)      1433      data-arc span      10190 days (27.90 yr)      first obs. used      1992-12-23      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45683      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:54:05   Additional Information  Earth MOID = 1.91446 au   Jupiter MOID = 1.80569 au   T_jup = 3.153  [ 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 13.5   n/a MPO449442   diameter diameter 11.540 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.059   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70007 (1998 XX40)          Discovered 1998-Dec-14 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 XX40 = 2000 GF167  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 07:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin