+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   487977 (2015 TE308) Classification: Main-belt Asteroid          SPK-ID: 2487977 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1784793241591179 6.7602e-08   a 2.726812599248801 5.8674e-08 au q 2.240132929426307 1.9496e-07 au i 16.92333100558803 6.5014e-06 deg node 96.90768007423098 2.4103e-05 deg peri 277.8023582201561 3.1227e-05 deg M 15.584515762123 1.9948e-05 deg tp 2458929.301281540353 (2020-Mar-20.80128154) 9.008e-05 TDB period 1644.679824301534 4.50 5.3084e-05 1.453e-07 d yr n .2188875881376398 7.0649e-09 deg/d Q 3.213492269071294 6.9146e-08 au   Orbit Determination Parameters    # obs. used (total)      96      data-arc span      5139 days (14.07 yr)      first obs. used      2005-06-08      last obs. used      2019-07-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61145      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 08:19:53   Additional Information  Earth MOID = 1.31584 au   Jupiter MOID = 2.43597 au   T_jup = 3.271  [ hide covariance matrix ] Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1809019148991415 6.7913e-08   q 2.233070839333493 1.9583e-07 au tp 2457281.058141693864 (2015-Sep-15.55814169) 7.8795e-05 TDB node 97.04978083066091 2.4179e-05 deg peri 277.1012510665149 3.0945e-05 deg i 16.9002922679696 6.4942e-06 deg   Orbit Determination Parameters    # obs. used (total)      96      data-arc span      5139 days (14.07 yr)      first obs. used      2005-06-08      last obs. used      2019-07-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61145      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 08:19:53   Additional Information  Jupiter MOID = 2.43597 au   T_jup = 3.271  Orbit Covariance (6×6)   e q tp node peri i e 4.612195559150032E-15 -1.289601338790042E-14 1.746194269675414E-12 -1.707366866445022E-14 5.160470409212741E-13 -4.489234940343232E-14 q -1.289601338790042E-14 3.834761056838029E-14 -5.346189420657537E-12 4.405330709651553E-14 -1.517773060722078E-12 1.379554232885417E-13 tp 1.746194269675414E-12 -5.346189420657537E-12 6.208645957360012E-9 3.333224115362058E-11 1.57582100140052E-9 -3.295305380677012E-11 node -1.707366866445022E-14 4.405330709651553E-14 3.333224115362058E-11 5.846251662106996E-10 -5.504825656847428E-10 -3.861903138664916E-11 peri 5.160470409212741E-13 -1.517773060722078E-12 1.57582100140052E-9 -5.504825656847428E-10 9.576184917107011E-10 2.827279604382835E-11 i -4.489234940343232E-14 1.379554232885417E-13 -3.295305380677012E-11 -3.861903138664916E-11 2.827279604382835E-11 4.217459620264504E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.7   n/a MPO477321   487977 (2015 TE308)          Discovered 2014-May-06 by Pan-STARRS 1 at Haleakala Reference: Last Updated: 2017-03-14 Alternate Designations  2015 TE308 = 2014 NL17  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-27 15:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin