+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100232 (1994 PU23) Classification: Main-belt Asteroid          SPK-ID: 2100232 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1070838383745697 8.0671e-08   a 2.559967721992313 1.6069e-08 au q 2.285836552206373 1.9784e-07 au i 2.02558682857498 4.3728e-06 deg node 349.434751124851 0.00014868 deg peri 9.860295909407931 0.0001506 deg M 138.4944635303418 2.6932e-05 deg tp 2458624.953956736981 (2019-May-21.45395674) 0.00011019 TDB period 1496.063960197899 4.10 1.4086e-05 3.857e-08 d yr n .2406314232396717 2.2656e-09 deg/d Q 2.834098891778253 1.7789e-08 au   Orbit Determination Parameters    # obs. used (total)      541      data-arc span      10578 days (28.96 yr)      first obs. used      1992-02-01      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57542      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:24:45   Additional Information  Earth MOID = 1.28047 au   Jupiter MOID = 2.58988 au   T_jup = 3.426  [ 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 16.09   n/a E2021B55   diameter diameter 4.772 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.034   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100232 (1994 PU23)          Discovered 1994-Aug-12 by Elst, E. W. at La Silla Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1994 PU23 = 1998 QU22 = 2002 PU95  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-08 13:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin