+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14870 (1990 SM14) Classification: Main-belt Asteroid          SPK-ID: 2014870 [ 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 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2236422107112074 2.7151e-08   a 2.38880623682611 6.7891e-09 au q 1.854568329061599 6.723e-08 au i 4.24571211054983 2.8139e-06 deg node 142.6802417993912 4.5434e-05 deg peri 187.0138806378135 4.5992e-05 deg M 93.94183896925435 8.1485e-06 deg tp 2458848.594244396312 (2019-Dec-31.09424440) 2.996e-05 TDB period 1348.558569933786 3.69 5.749e-06 1.574e-08 d yr n .2669516979286083 1.138e-09 deg/d Q 2.923044144590622 8.3075e-09 au   Orbit Determination Parameters    # obs. used (total)      2389      data-arc span      11124 days (30.46 yr)      first obs. used      1990-09-22      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46924      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:41:08   Additional Information  Earth MOID = .841671 au   Jupiter MOID = 2.43698 au   T_jup = 3.495  [ 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 13.81   n/a E2021B10   diameter diameter 5.425 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.262   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14870 (1990 SM14)          Discovered 1990-Sep-24 by Debehogne, H. at La Silla Reference: 20000523/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1990 SM14 = 1998 XV94  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 11:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin