+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102448 (1999 TS216) Classification: Main-belt Asteroid          SPK-ID: 2102448 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2038807047635678 3.9509e-08   a 2.418916115093233 1.2807e-08 au q 1.925745792784073 9.6458e-08 au i 2.409931436897991 4.6375e-06 deg node 309.4494689190911 0.00010098 deg peri 359.8982195644216 0.00010166 deg M 279.7699774199402 1.5727e-05 deg tp 2459506.741506337530 (2021-Oct-19.24150634) 6.1746e-05 TDB period 1374.135750385686 3.76 1.0913e-05 2.988e-08 d yr n .2619828498741532 2.0807e-09 deg/d Q 2.912086437402393 1.5419e-08 au   Orbit Determination Parameters    # obs. used (total)      438      data-arc span      9505 days (26.02 yr)      first obs. used      1994-03-14      last obs. used      2020-03-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55013      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:54:43   Additional Information  Earth MOID = .909174 au   Jupiter MOID = 2.3528 au   T_jup = 3.485  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.69   n/a E2021B55   diameter diameter 2.639 km 0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.064   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   102448 (1999 TS216)          Discovered 1999-Oct-15 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1999 TS216 = 2002 JM11  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-04 23:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin