+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102442 (1999 TZ214) Classification: Main-belt Asteroid          SPK-ID: 2102442 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09238111801656837 5.4644e-08   a 2.923524445133947 1.7147e-08 au q 2.653445988343705 1.6074e-07 au i 2.874953272241002 3.9704e-06 deg node 137.9523430967634 9.8288e-05 deg peri 252.5508135411203 0.00010189 deg M 80.14589587773467 2.3768e-05 deg tp 2458794.021753621010 (2019-Nov-06.52175362) 0.0001208 TDB period 1825.822359259306 5.00 1.6063e-05 4.398e-08 d yr n .1971714269870392 1.7347e-09 deg/d Q 3.193602901924188 1.8731e-08 au   Orbit Determination Parameters    # obs. used (total)      940      data-arc span      7781 days (21.30 yr)      first obs. used      1999-10-03      last obs. used      2021-01-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53239      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:31:28   Additional Information  Earth MOID = 1.65922 au   Jupiter MOID = 2.21197 au   T_jup = 3.271  [ 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 15.08   n/a E2021B55   diameter diameter 3.103 km 0.623 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.221   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   102442 (1999 TZ214)          Discovered 1999-Oct-15 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 TZ214 = 1999 TF236 = 2001 CG18 = 2004 RP223  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-05 02:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin