+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100100 (1993 FB25) Classification: Outer Main-belt Asteroid          SPK-ID: 2100100 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .236744361667522 4.1977e-08   a 3.288639129318091 2.7749e-08 au q 2.510072357892844 1.3972e-07 au i .9416038942562098 4.7775e-06 deg node 301.2297729110819 0.00038407 deg peri 204.4326507641096 0.00038429 deg M 223.6881703659818 1.463e-05 deg tp 2459825.309782207687 (2022-Sep-02.80978221) 9.4528e-05 TDB period 2178.325405740607 5.96 2.757e-05 7.548e-08 d yr n .1652645647208085 2.0917e-09 deg/d Q 4.067205900743338 3.4318e-08 au   Orbit Determination Parameters    # obs. used (total)      463      data-arc span      21856 days (59.84 yr)      first obs. used      1960-09-28      last obs. used      2020-07-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57977      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 09:02:06   Additional Information  Earth MOID = 1.52223 au   Jupiter MOID = .958671 au   T_jup = 3.127  [ 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 MPO493562   diameter diameter 4.984 km 0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.078   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100100 (1993 FB25)          Discovered 1993-Mar-21 by UESAC at La Silla Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1993 FB25 = 1999 FP61  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-19 22:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin