+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1764662260324585 3.19e-08   a 2.27627706125521 6.508e-09 au q 1.874591038851247 7.1711e-08 au i 4.101435855256469 4.0652e-06 deg node 26.96724700531791 5.0171e-05 deg peri 93.97078561252998 5.1765e-05 deg M 278.9955759740085 1.3465e-05 deg tp 2459282.755457107452 (2021-Mar-09.25545711) 4.7538e-05 TDB period 1254.400185921687 3.43 5.3796e-06 1.473e-08 d yr n .286989753382 1.2308e-09 deg/d Q 2.677963083659172 7.6564e-09 au   Orbit Determination Parameters    # obs. used (total)      1961      data-arc span      24161 days (66.15 yr)      first obs. used      1954-07-29      last obs. used      2020-09-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46037      source      ORB      producer      Otto Matic      solution date      2020-Oct-22 15:47:19   Additional Information  Earth MOID = .89574 au   Jupiter MOID = 2.40431 au   T_jup = 3.585  [ 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 13.9   n/a MPO448950   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 ] 2020-Oct-31 02:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin