+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100623 (1997 TP27) Classification: Main-belt Asteroid          SPK-ID: 2100623 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1370689163689292 3.536e-08   a 3.082065286351189 2.0794e-08 au q 2.659609937372739 1.1437e-07 au i 5.405066677122055 4.7574e-06 deg node 171.5347689876715 4.3868e-05 deg peri 299.6460391705081 4.8772e-05 deg M 359.7209664304945 1.8822e-05 deg tp 2459202.031846088243 (2020-Dec-18.53184609) 0.00010333 TDB period 1976.337803171406 5.41 2.0001e-05 5.476e-08 d yr n .1821550948538818 1.8434e-09 deg/d Q 3.50452063532964 2.3644e-08 au   Orbit Determination Parameters    # obs. used (total)      582      data-arc span      9361 days (25.63 yr)      first obs. used      1995-06-03      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52144      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:25:49   Additional Information  Earth MOID = 1.68124 au   Jupiter MOID = 1.62966 au   T_jup = 3.206  [ 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 15.4   n/a MPO493565   diameter diameter 5.614 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.035   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100623 (1997 TP27)          Discovered 1997-Oct-03 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1997 TP27 = 2000 ED101  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 16:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin