+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100250 (1994 RN15) Classification: Main-belt Asteroid          SPK-ID: 2100250 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2027110234544588 3.1956e-08   a 2.347908002325457 9.7251e-09 au q 1.871961168197149 7.4028e-08 au i 5.077561896280309 4.0396e-06 deg node 157.8401074303592 4.3169e-05 deg peri 94.66209077244461 4.4598e-05 deg M 173.2657233687884 1.0491e-05 deg tp 2458568.044175941566 (2019-Mar-25.54417594) 3.7078e-05 TDB period 1314.074660782277 3.60 8.1644e-06 2.235e-08 d yr n .2739570366463728 1.7021e-09 deg/d Q 2.823854836453763 1.1697e-08 au   Orbit Determination Parameters    # obs. used (total)      518      data-arc span      9631 days (26.37 yr)      first obs. used      1994-09-03      last obs. used      2021-01-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58403      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:24:49   Additional Information  Earth MOID = .86448 au   Jupiter MOID = 2.23533 au   T_jup = 3.527  [ 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 16.4   n/a MPO436466   diameter diameter 2.862 km 0.675 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   geometric albedo albedo 0.054   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100250 (1994 RN15)          Discovered 1994-Sep-03 by Elst, E. W. at La Silla Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-01 16:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin