+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2368583369808013 4.1746e-08   a 3.288834729703317 2.6768e-08 au q 2.509846805021086 1.3936e-07 au i .9416236625804516 4.1189e-06 deg node 301.2307548361564 0.00037097 deg peri 204.3978932544718 0.00037116 deg M 256.7972892757064 1.4454e-05 deg tp 2459825.025399083252 (2022-Sep-02.52539908) 9.2653e-05 TDB period 2178.519751003465 5.96 2.6597e-05 7.282e-08 d yr n .1652498215057162 2.0175e-09 deg/d Q 4.067822654385548 3.3108e-08 au   Orbit Determination Parameters    # obs. used (total)      547      data-arc span      22014 days (60.27 yr)      first obs. used      1960-09-28      last obs. used      2021-01-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55108      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:24:23   Additional Information  Earth MOID = 1.52188 au   Jupiter MOID = .9575 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 ] 2021-Feb-28 17:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin