+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   74411 (1999 AE5) Classification: Main-belt Asteroid          SPK-ID: 2074411 [ 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 .1759060930521178 3.7934e-08   a 3.109338902996265 2.2142e-08 au q 2.562387244595234 1.2654e-07 au i 2.8876095581318 4.5884e-06 deg node 133.2407033982524 0.00010395 deg peri 334.5745991681882 0.00010522 deg M 341.3170578085124 1.754e-05 deg tp 2459104.430564715798 (2020-Sep-11.93056472) 9.8104e-05 TDB period 2002.629078129592 5.48 2.1392e-05 5.857e-08 d yr n .1797636936023277 1.9202e-09 deg/d Q 3.656290561397297 2.6037e-08 au   Orbit Determination Parameters    # obs. used (total)      826      data-arc span      9430 days (25.82 yr)      first obs. used      1994-04-03      last obs. used      2020-01-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5176      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 17:15:31   Additional Information  Earth MOID = 1.57953 au   Jupiter MOID = 1.48033 au   T_jup = 3.193  [ 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 14.7   n/a MPO337818   diameter diameter 6.491 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.066   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   74411 (1999 AE5)          Discovered 1999-Jan-15 by Spacewatch at Kitt Peak Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 AE5 = 2002 RD163  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-13 03:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin