+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190240 (2007 DP52) Classification: Main-belt Asteroid          SPK-ID: 2190240 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .102008894951326 6.1315e-08   a 2.557758366386632 2.1935e-08 au q 2.296844261879023 1.544e-07 au i 10.7660425923764 6.6959e-06 deg node 178.8558547996814 3.5423e-05 deg peri 87.52065494726926 5.1712e-05 deg M 48.32046554941067 4.4109e-05 deg tp 2458999.952936668541 (2020-May-30.45293667) 0.00018165 TDB period 1494.127632638376 4.09 1.9221e-05 5.262e-08 d yr n .2409432716027753 3.0995e-09 deg/d Q 2.818672470894241 2.4173e-08 au   Orbit Determination Parameters    # obs. used (total)      229      data-arc span      10157 days (27.81 yr)      first obs. used      1992-09-30      last obs. used      2020-07-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54775      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 07:04:07   Additional Information  Earth MOID = 1.31089 au   Jupiter MOID = 2.28598 au   T_jup = 3.405  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.61   n/a E2021B55   diameter diameter 3.381 km 0.983 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.043   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   190240 (2007 DP52)          Discovered 2007-Feb-19 by Mt. Lemmon Survey at Mount Lemmon Reference: 20080819/Numbers.arc Last Updated: 2008-08-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-12 01:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin