+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   35999 (1999 NB22) Classification: Main-belt Asteroid          SPK-ID: 2035999 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1301789535964318 3.526e-08   a 2.764138692006231 1.4568e-08 au q 2.404306009485451 9.8817e-08 au i 10.05326726406773 3.8039e-06 deg node 107.9900294983845 2.6193e-05 deg peri 190.3301442255972 3.1878e-05 deg M 277.2284445598617 2.0383e-05 deg tp 2459782.437329936709 (2022-Jul-21.93732994) 9.6007e-05 TDB period 1678.565034067736 4.60 1.327e-05 3.633e-08 d yr n .2144689021238558 1.6955e-09 deg/d Q 3.123971374527012 1.6464e-08 au   Orbit Determination Parameters    # obs. used (total)      1148      data-arc span      8482 days (23.22 yr)      first obs. used      1998-03-24      last obs. used      2021-06-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54472      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 20:24:49   Additional Information  Earth MOID = 1.38869 au   Jupiter MOID = 2.07593 au   T_jup = 3.306  [ 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 14.71   n/a MPCxxxxx   diameter diameter 3.508 km 1.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.227   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   35999 (1999 NB22)          Discovered 1999-Jul-14 by LINEAR at Socorro Reference: 20020227/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1999 NB22 = 1998 FC95  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-27 00:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin