+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2015 TB145) Classification: Apollo [NEO, PHA]          SPK-ID: 3729835 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 66 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .8600810608945993 4.5331e-08   a 2.100693024125551 3.4596e-08 au q .2939267393217628 9.4942e-08 au i 39.69604211185889 1.035e-05 deg node 37.68537524718685 4.0151e-07 deg peri 121.7498074098543 1.0867e-05 deg M 233.1619411564054 1.4775e-05 deg tp 2459592.322528489541 (2022-Jan-12.82252849) 5.5304e-05 TDB period 1112.096097514175 3.04 2.7473e-05 7.522e-08 d yr n .3237130323581695 7.9969e-09 deg/d Q 3.907459308929338 6.4352e-08 au   Orbit Determination Parameters    # obs. used (total)      1812      # delay obs. used      6      # Doppler obs. used      2      data-arc span      1137 days (3.11 yr)      first obs. used      2015-10-10      last obs. used      2018-11-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .22693      source      ORB      producer      Otto Matic      solution date      2018-Nov-20 06:28:45   Additional Information  Earth MOID = .0024529 au   Jupiter MOID = 2.40986 au   T_jup = 2.976  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 20.0   n/a MPO361281   rotation period rot_per 2.938 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D.; Carbognani, A.; Franco, L.; Oey, J. (2016) Minor Planet Bull. 43, 141-142.] [Muller, T.G.; Marciniak, A.; Butkiewicz-Bak, M.; Duffard, R.; et al. (2017) Astron. Astrophys. 598, A63.] [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-12 04:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin