+ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2039524889597515 5.7958e-08   a 2.75885844764892 1.506e-08 au q 2.196182400563286 1.6361e-07 au i 2.853382694479626 6.0876e-06 deg node 323.844309803826 8.9073e-05 deg peri 45.21462499446069 8.9711e-05 deg M 200.7707277784243 1.0497e-05 deg tp 2459740.808887915583 (2022-Jun-10.30888792) 5.1807e-05 TDB period 1673.757569391801 4.58 1.3705e-05 3.752e-08 d yr n .2150849122856032 1.7611e-09 deg/d Q 3.321534494734553 1.8131e-08 au   Orbit Determination Parameters    # obs. used (total)      604      data-arc span      9391 days (25.71 yr)      first obs. used      1994-08-10      last obs. used      2020-04-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52722      source      ORB      producer      Otto Matic      solution date      2020-May-20 17:51:16   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 15.6   n/a MPO337984   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 ] 2020-Oct-19 22:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin