+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100226 (1994 PJ16) Classification: Main-belt Asteroid          SPK-ID: 2100226 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2039524868143562 5.7584e-08   a 2.758858447216468 1.5029e-08 au q 2.196182406137876 1.6268e-07 au i 2.853381131021664 5.8454e-06 deg node 323.84430951 8.907e-05 deg peri 45.21462670409409 8.9628e-05 deg M 200.7707268502567 1.0195e-05 deg tp 2459740.808892056872 (2022-Jun-10.30889206) 5.0574e-05 TDB period 1673.757568998259 4.58 1.3677e-05 3.745e-08 d yr n .2150849123361751 1.7575e-09 deg/d Q 3.321534488295061 1.8094e-08 au   Orbit Determination Parameters    # obs. used (total)      614      data-arc span      9437 days (25.84 yr)      first obs. used      1994-08-10      last obs. used      2020-06-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52579      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:07:19   Additional Information  Earth MOID = 1.19655 au   Jupiter MOID = 2.15389 au   T_jup = 3.310  [ 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 15.67   n/a E2021B55   diameter diameter 4.056 km 1.205 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.068   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100226 (1994 PJ16)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1994 PJ16 = 1999 VQ113  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 17:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin