+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17480 (1991 PE10) Classification: Main-belt Asteroid          SPK-ID: 2017480 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1741487194611405 3.6811e-08   a 2.790681474287962 9.955e-09 au q 2.304687869116785 1.0249e-07 au i 8.656093463313526 5.0037e-06 deg node 337.9822988919412 1.9053e-05 deg peri 38.96260639101534 2.3292e-05 deg M 78.40967197641923 1.1938e-05 deg tp 2458829.622089802866 (2019-Dec-12.12208980) 5.6394e-05 TDB period 1702.800742631871 4.66 9.1114e-06 2.495e-08 d yr n .2114163982825021 1.1313e-09 deg/d Q 3.276675079459138 1.1689e-08 au   Orbit Determination Parameters    # obs. used (total)      1709      data-arc span      24266 days (66.44 yr)      first obs. used      1954-10-06      last obs. used      2021-03-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46425      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:04:11   Additional Information  Earth MOID = 1.31122 au   Jupiter MOID = 2.23272 au   T_jup = 3.290  [ 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 13.92   n/a E2021B10   diameter diameter 4.301 km 0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.263   0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 17480 (1991 PE10)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar Reference: 20001013/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 PE10 = 1982 UL8 = 1982 VV6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-18 19:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin