+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1069754863660058 8.1061e-08   a 2.559927887328678 1.6667e-08 au q 2.286078356519791 1.9853e-07 au i 2.025461222022585 4.5364e-06 deg node 349.4383600811927 0.00016316 deg peri 9.824562397804765 0.00016523 deg M 90.41473369972127 2.7862e-05 deg tp 2458624.769257406847 (2019-May-21.26925741) 0.00011499 TDB period 1496.029040828242 4.10 1.4611e-05 4e-08 d yr n .2406370399071226 2.3501e-09 deg/d Q 2.833777418137565 1.845e-08 au   Orbit Determination Parameters    # obs. used (total)      521      data-arc span      10223 days (27.99 yr)      first obs. used      1992-02-01      last obs. used      2020-01-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56946      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 01:02:49   Additional Information  Earth MOID = 1.28237 au   Jupiter MOID = 2.58989 au   T_jup = 3.427  [ 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 16.0   n/a MPO502721   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 ] 2020-Oct-22 13:44 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin