+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   277543 (2005 YA74) Classification: Main-belt Asteroid          SPK-ID: 2277543 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .200937334761898 1.5827e-07   a 2.72901858092017 2.5429e-08 au q 2.180656860754374 4.3935e-07 au i 5.530424970304074 7.9057e-06 deg node 299.7376219499167 0.00011793 deg peri 78.85543313750144 0.00011974 deg M 131.0687291483468 1.8476e-05 deg tp 2458400.978512142206 (2018-Oct-09.47851214) 8.3299e-05 TDB period 1646.676038069515 4.51 2.3016e-05 6.301e-08 d yr n .2186222375726358 3.0557e-09 deg/d Q 3.277380301085966 3.0539e-08 au   Orbit Determination Parameters    # obs. used (total)      113      data-arc span      7029 days (19.24 yr)      first obs. used      2000-10-25      last obs. used      2020-01-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53031      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 14:12:40   Additional Information  Earth MOID = 1.19079 au   Jupiter MOID = 2.23947 au   T_jup = 3.319  [ 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 17.4   n/a MPO413220   diameter diameter 1.764 km 0.352 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.062   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   277543 (2005 YA74)          Discovered 2005-Dec-24 by Spacewatch at Kitt Peak Reference: 20110517/Numbers.arc Last Updated: 2011-05-20 [ show close-approach data ] Alternate Designations  2005 YA74 = 2000 UT11  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 05:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin