+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101885 (1999 NV40) Classification: Main-belt Asteroid          SPK-ID: 2101885 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2171101467539981 5.847e-08   a 3.130368796855434 2.0314e-08 au q 2.450733967976015 1.8704e-07 au i 16.45402780587753 6.4037e-06 deg node 324.9188303505129 1.6323e-05 deg peri 58.47800748112864 2.1173e-05 deg M 227.0689235133621 1.2788e-05 deg tp 2459747.491580292774 (2022-Jun-16.99158029) 7.567e-05 TDB period 2022.98044981551 5.54 1.9691e-05 5.391e-08 d yr n .1779552541067962 1.7322e-09 deg/d Q 3.810003625734854 2.4724e-08 au   Orbit Determination Parameters    # obs. used (total)      1048      data-arc span      11156 days (30.54 yr)      first obs. used      1989-11-09      last obs. used      2020-05-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53158      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:57:59   Additional Information  Earth MOID = 1.49579 au   Jupiter MOID = 1.90267 au   T_jup = 3.114  [ 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 13.6   n/a MPO395897   diameter diameter 9.898 km 0.217 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.079   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101885 (1999 NV40)          Discovered 1999-Jul-14 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 NV40 = 2000 XN43  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-28 12:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin