+ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1765531586686493 3.0365e-08   a 2.27670389944164 5.4137e-09 au q 1.874744634641987 6.908e-08 au i 4.101167439842559 3.7717e-06 deg node 26.96549857131908 4.8666e-05 deg peri 93.9266755711942 5.0025e-05 deg M 336.4332479331122 1.1162e-05 deg tp 2459282.640148948199 (2021-Mar-09.14014895) 3.8991e-05 TDB period 1254.753032468116 3.44 4.4755e-06 1.225e-08 d yr n .2869090495775692 1.0234e-09 deg/d Q 2.678663164241292 6.3695e-09 au   Orbit Determination Parameters    # obs. used (total)      2172      data-arc span      24281 days (66.48 yr)      first obs. used      1954-07-29      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44202      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:12:09   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-Mar-04 22:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin