+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2010 Chebyshev (1969 TL4) Classification: Main-belt Asteroid          SPK-ID: 2002010 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .189802294784854 3.5778e-08   a 3.089783483484327 1.2986e-08 au q 2.503335487930662 1.1075e-07 au i 2.396794741136313 4.3988e-06 deg node 8.534638507407982 8.4217e-05 deg peri 33.03461926829445 8.4911e-05 deg M 92.7237192105348 1.0135e-05 deg tp 2458489.549486180346 (2019-Jan-06.04948618) 5.5443e-05 TDB period 1983.766252488467 5.43 1.2506e-05 3.424e-08 d yr n .1814729933773248 1.144e-09 deg/d Q 3.676231479037992 1.545e-08 au   Orbit Determination Parameters    # obs. used (total)      2772      data-arc span      32522 days (89.04 yr)      first obs. used      1931-10-31      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45643      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 19:41:34   Additional Information  Earth MOID = 1.51217 au   Jupiter MOID = 1.749 au   T_jup = 3.196  [ 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 11.5   n/a MPO502172   diameter diameter 24.649 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.065   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   B-V BV 0.705   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=15.25 deg. U-B UB 0.339   0.065 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=15.25 deg. Tholen spectral type spec_T BU:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo 2010 Chebyshev (1969 TL4)          Discovered 1969-Oct-13 by Burnasheva, B. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1969 TL4 = 1931 VA = 1948 YA = 1958 TF1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-28 00:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin