+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   25133 Douglin (1998 SU14) Classification: Main-belt Asteroid          SPK-ID: 2025133 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1770980614456151 5.0407e-08   a 2.567628034684476 1.2411e-08 au q 2.112906087228441 1.3371e-07 au i 4.44691540662435 3.6988e-06 deg node 79.68189237655778 6.3304e-05 deg peri 262.3127142194324 6.438e-05 deg M 216.0089645533197 1.5708e-05 deg tp 2459997.576216678127 (2023-Feb-22.07621668) 6.889e-05 TDB period 1502.784095779724 4.11 1.0896e-05 2.983e-08 d yr n .2395553699370321 1.7369e-09 deg/d Q 3.022349982140511 1.4609e-08 au   Orbit Determination Parameters    # obs. used (total)      770      data-arc span      9664 days (26.46 yr)      first obs. used      1994-10-31      last obs. used      2021-04-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .60422      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 19:06:24   Additional Information  Earth MOID = 1.10954 au   Jupiter MOID = 2.38451 au   T_jup = 3.405  [ 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 15.19   n/a MPCxxxxx   diameter diameter 2.403 km 0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.306   0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   25133 Douglin           Discovered 1998 Sept. 18 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. Douglas N. C. Lin (b. 1949) is a theoretical astrophysicist at the University of California, Santa Cruz. He also served as founding director of the Kavli Institute for Astronomy & Astrophysics at Peking University. He has modeled the formation, structure, and evolution of galaxies, globular clusters, stars and planets. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2015-09-28 Last Updated: 2015-10-05 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-17 13:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin