+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101871 (1999 NV1) Classification: Main-belt Asteroid          SPK-ID: 2101871 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1233604240718081 4.9234e-08   a 2.335205370546025 1.2869e-08 au q 2.047133445740704 1.1459e-07 au i 22.24498180223466 5.2948e-06 deg node 291.2731061844878 1.0931e-05 deg peri 25.07161976064441 2.0506e-05 deg M 315.4817218736918 1.9518e-05 deg tp 2459161.683991271117 (2020-Nov-08.18399127) 7.126e-05 TDB period 1303.4250042863 3.57 1.0774e-05 2.95e-08 d yr n .2761954073430719 2.2831e-09 deg/d Q 2.623277295351346 1.4456e-08 au   Orbit Determination Parameters    # obs. used (total)      719      data-arc span      7714 days (21.12 yr)      first obs. used      1999-07-12      last obs. used      2020-08-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51441      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:58:05   Additional Information  Earth MOID = 1.04367 au   Jupiter MOID = 2.6352 au   T_jup = 3.459  [ 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 15.3   n/a MPO432545   diameter diameter 5.526 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.062   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101871 (1999 NV1)          Discovered 1999-Jul-12 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1999 NV1 = 2001 AC12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-05 00:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin