+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   52456 (1995 AY3) Classification: Main-belt Asteroid          SPK-ID: 2052456 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1713946347539583 5.2366e-08   a 2.577336930688263 1.1805e-08 au q 2.13559520881506 1.3908e-07 au i 6.964449144517187 3.4385e-06 deg node 87.34292904050628 3.6354e-05 deg peri 56.97092404856408 3.9104e-05 deg M 18.05193903226324 1.103e-05 deg tp 2458924.716164882958 (2020-Mar-16.21616488) 4.6479e-05 TDB period 1511.315797897115 4.14 1.0383e-05 2.843e-08 d yr n .2382030284477364 1.6365e-09 deg/d Q 3.019078652561466 1.3828e-08 au   Orbit Determination Parameters    # obs. used (total)      1312      data-arc span      9270 days (25.38 yr)      first obs. used      1995-01-02      last obs. used      2020-05-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52092      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 23:17:41   Additional Information  Earth MOID = 1.15764 au   Jupiter MOID = 2.02705 au   T_jup = 3.395  [ 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 15.0   n/a MPO468403   diameter diameter 4.973 km 1.596 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   geometric albedo albedo 0.078   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   52456 (1995 AY3)          Discovered 1995-Jan-02 by Elst, E. W. at Caussols Reference: 20030216/Numbers.arc Last Updated: 2004-04-19 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2178-Nov-09 20:11 00:04 Iris 0.0472617508945714 0.0472566531804442 0.0472668665821289 6.86547202194479 6.86547200422769 2516871.341046438 4.18203237815977 1518.75891888687 61.3794626972337 80.6280179839618 113631.891345291 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:17:44 2020-Nov-12 23:17 Alternate Designations  1995 AY3 = 2000 KA55  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-27 05:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin