+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3636 Pajdusakova (1982 UJ2) Classification: Main-belt Asteroid          SPK-ID: 2003636 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1765531279351272 1.4837e-08   a 2.276703898284799 5.2427e-09 au q 1.874744703660521 3.3674e-08 au i 4.10116654605671 5.5527e-07 deg node 26.96556136199695 9.731e-06 deg peri 93.92662618718724 1.0818e-05 deg M 336.4332366360126 7.4889e-06 deg tp 2459282.640188260788 (2021-Mar-09.14018826) 2.6242e-05 TDB period 1254.753031511767 3.44 4.3341e-06 1.187e-08 d yr n .2869090497962458 9.9102e-10 deg/d Q 2.678663092909078 6.1683e-09 au   Orbit Determination Parameters    # obs. used (total)      2249      data-arc span      24331 days (66.61 yr)      first obs. used      1954-07-29      last obs. used      2021-03-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43636      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 15:21:41   Additional Information  Earth MOID = .89581 au   Jupiter MOID = 2.4033 au   T_jup = 3.584  [ 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 13.92   n/a E2021B10   diameter diameter 4.055 km 0.227 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.356   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 3636 Pajdusakova (1982 UJ2)          Discovered 1982-Oct-17 by Mrkos, A. at Klet Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1982 UJ2 = 1973 AB4 = 1980 DU2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-20 08:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin