+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2606 Odessa (1976 GX2) Classification: Main-belt Asteroid          SPK-ID: 2002606 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2641707470309695 3.2971e-08   a 2.75916175625013 1.0996e-08 au q 2.030271933922251 9.2525e-08 au i 12.44903662140982 3.9177e-06 deg node 197.3079925686208 1.6019e-05 deg peri 353.1023836035753 1.7282e-05 deg M 223.0316952624995 8.6384e-06 deg tp 2459637.415399242187 (2022-Feb-26.91539924) 4.2214e-05 TDB period 1674.033596068962 4.58 1.0007e-05 2.74e-08 d yr n .2150494475411769 1.2856e-09 deg/d Q 3.488051578578009 1.3901e-08 au   Orbit Determination Parameters    # obs. used (total)      2688      data-arc span      24135 days (66.08 yr)      first obs. used      1954-07-05      last obs. used      2020-08-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4508      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 22:54:19   Additional Information  Earth MOID = 1.03088 au   Jupiter MOID = 1.47641 au   T_jup = 3.257  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 11.7   n/a MPO350821   diameter diameter 15.910 km 0.231 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 8.2426 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Higgins, D.; Pravec, P.; Kusnirak, P.; Hornoch, K.; Brinsfield, J.W.; Allen, B.; Warner, B.D. (2008) Minor Planet Bull. 35, 123-126.] [Oliver, R.L.; Shipley, H.; Ditteon, R. (2008) Minor Planet Bull. 35, 149-150.] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] geometric albedo albedo 0.175   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   SMASSII spectral type spec_B Xk   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) 2606 Odessa (1976 GX2)          Discovered 1976-Apr-01 by Chernykh, N. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1976 GX2 = 1955 VE  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-31 00:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin