+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134240 (2005 YQ170) Classification: Main-belt Asteroid          SPK-ID: 2134240 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09536116588313821 4.5169e-08   a 2.291091477576339 1.0548e-08 au q 2.072610323129738 1.0402e-07 au i 5.617158499409692 5.1126e-06 deg node 334.5149468683495 3.7189e-05 deg peri 184.009456802001 4.2828e-05 deg M 72.49558955912396 1.9934e-05 deg tp 2458945.423084369673 (2020-Apr-05.92308437) 7.0289e-05 TDB period 1266.665878370812 3.47 8.7478e-06 2.395e-08 d yr n .2842107031911468 1.9628e-09 deg/d Q 2.509572632022941 1.1554e-08 au   Orbit Determination Parameters    # obs. used (total)      536      data-arc span      8290 days (22.70 yr)      first obs. used      1997-08-10      last obs. used      2020-04-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5415      source      ORB      producer      Otto Matic      solution date      2020-May-20 22:17:54   Additional Information  Earth MOID = 1.08142 au   Jupiter MOID = 2.47253 au   T_jup = 3.586  [ 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 16.76   n/a E2021B55   diameter diameter 1.803 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.137   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   134240 (2005 YQ170)          Discovered 2005-Dec-27 by CSS at Catalina Reference: 20060711/Numbers.arc Last Updated: 2006-07-17 [ show close-approach data ] Alternate Designations  2005 YQ170 = 2003 FF53  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-10 11:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin