+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5725 Nordlingen (1988 BK2) Classification: Main-belt Asteroid          SPK-ID: 2005725 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05519199721754752 1.9093e-08   a 2.682663167047413 1.3656e-08 au q 2.534601628996116 5.2646e-08 au i 22.52446735503518 6.474e-07 deg node 55.16222984568216 2.2262e-06 deg peri 77.90006371358054 1.6793e-05 deg M 203.617179669831 1.6176e-05 deg tp 2460093.662770391188 (2023-May-29.16277039) 7.4626e-05 TDB period 1604.898778593071 4.39 1.2255e-05 3.355e-08 d yr n .2243132120242455 1.7128e-09 deg/d Q 2.830724705098711 1.441e-08 au   Orbit Determination Parameters    # obs. used (total)      1993      data-arc span      24976 days (68.38 yr)      first obs. used      1953-02-15      last obs. used      2021-07-04      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .39727      source      ORB      producer      Otto Matic      solution date      2021-Jul-09 13:39:21   Additional Information  Earth MOID = 1.62423 au   Jupiter MOID = 2.31221 au   T_jup = 3.264  [ 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 12.83   n/a E2021B10   diameter diameter 7.619 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   geometric albedo albedo 0.311   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   5725 Nordlingen (1988 BK2)          Discovered 1988-Jan-23 by Shoemaker, C. S. at Palomar Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1988 BK2 = 1991 VM3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-29 20:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin