+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20901 Mattmuehler (2000 XO6) Classification: Main-belt Asteroid          SPK-ID: 2020901 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1142801155197591 3.3675e-08   a 2.365732873319759 9.6447e-09 au q 2.095376647267885 8.1985e-08 au i 6.252378701146657 5.1302e-06 deg node 359.2413182952819 3.3889e-05 deg peri 268.9706810498336 4.4476e-05 deg M 289.6190114137702 3.2917e-05 deg tp 2459260.336313480219 (2021-Feb-14.83631348) 0.00012228 TDB period 1329.067333833673 3.64 8.1276e-06 2.225e-08 d yr n .2708666377056954 1.6564e-09 deg/d Q 2.636089099371632 1.0747e-08 au   Orbit Determination Parameters    # obs. used (total)      1541      data-arc span      14115 days (38.64 yr)      first obs. used      1981-09-03      last obs. used      2020-04-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5012      source      ORB      producer      Otto Matic      solution date      2020-May-20 05:17:30   Additional Information  Earth MOID = 1.09101 au   Jupiter MOID = 2.46093 au   T_jup = 3.531  [ 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 14.6   n/a MPO492971   diameter diameter 2.809 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.324   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   20901 Mattmuehler           Discovered 2000 Dec. 1 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Matthew Muehler (b. 1986) was awarded second place in the 2004 Intel International Science and Engineering Fair for his zoology project. He attends the Hankinson Public School, Hankinson, North Dakota, U.S.A. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20041226/MPCPages.arc Last Updated: 2004-12-25 [ show close-approach data ] Alternate Designations  2000 XO6 = 1981 RX6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-10 20:44 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin