+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 41 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2640078946695605 3.0281e-08   a 2.759763391679874 1.0491e-08 au q 2.031164068856345 8.6251e-08 au i 12.44730457101837 3.4189e-06 deg node 197.3028716986351 1.4445e-05 deg peri 353.0670252886875 1.5819e-05 deg M 266.0746174560663 8.7708e-06 deg tp 2459637.404655873156 (2022-Feb-26.90465587) 4.2222e-05 TDB period 1674.581160643829 4.58 9.5488e-06 2.614e-08 d yr n .2149791293851594 1.2259e-09 deg/d Q 3.488362714503404 1.3261e-08 au   Orbit Determination Parameters    # obs. used (total)      3106      data-arc span      24302 days (66.54 yr)      first obs. used      1954-07-05      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42666      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:04:20   Additional Information  Earth MOID = 1.03116 au   Jupiter MOID = 1.47506 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 11.81   n/a E2021B10   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. 2020-October); 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 ] 2021-Feb-28 07:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin