+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   175370 (2005 SH116) Classification: Main-belt Asteroid          SPK-ID: 2175370 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2030753091663723 4.8809e-08   a 3.06009210795521 2.6267e-08 au q 2.43866295705463 1.5999e-07 au i 3.746869294106556 5.0577e-06 deg node 328.8244341765664 8.6034e-05 deg peri 303.7796048598127 8.7578e-05 deg M 17.88809180870584 1.324e-05 deg tp 2459103.345775498700 (2020-Sep-10.84577550) 7.2138e-05 TDB period 1955.240457981446 5.35 2.5175e-05 6.893e-08 d yr n .1841205763365072 2.3707e-09 deg/d Q 3.681521258855791 3.1601e-08 au   Orbit Determination Parameters    # obs. used (total)      464      data-arc span      8127 days (22.25 yr)      first obs. used      1998-03-28      last obs. used      2020-06-27      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5825      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:05:07   Additional Information  Earth MOID = 1.4231 au   Jupiter MOID = 1.46903 au   T_jup = 3.199  [ 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 15.41   n/a E2021B55   diameter diameter 4.063 km 0.278 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.081   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   175370 (2005 SH116)          Discovered 2005-Sep-27 by Spacewatch at Kitt Peak Reference: 20080122/Numbers.arc Last Updated: 2008-01-28 [ show close-approach data ] Alternate Designations  2005 SH116 = 1998 FT136 = 2003 DO21 = 2003 DR23  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 15:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin