+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   461 Saskia (1900 FP) Classification: Main-belt Asteroid          SPK-ID: 2000461 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1411943300637264 4.9672e-08   a 3.122356325967127 1.6779e-08 AU q 2.681497316301961 1.5128e-07 AU i 1.462711373865513 6.7597e-06 deg node 157.04222483159 0.00025873 deg peri 304.5891436483662 0.00025968 deg M 111.0102350917617 2.6578e-05 deg tp 2455779.083695546002 (2011-Aug-05.58369555) 0.00014903 JED period 2015.21841133405 5.52 1.6244e-05 4.447e-08 d yr n .1786406862776151 1.44e-09 deg/d Q 3.563215335632294 1.9148e-08 AU   Orbit Determination Parameters    # obs. used (total)      1506      data-arc span      41090 days (112.50 yr)      first obs. used      1900-10-22      last obs. used      2013-04-22      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .56816      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:35:36   Additional Information  Earth MOID = 1.69811 AU   T_jup = 3.200  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 10.48 mag n/a PDS3 (MPC 17258)   rotation period rot_per 7.348 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Buchheim, R.K. (2006) Minor Planet Bul. 33, 63.] [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] B-V BV .610 mag .028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=3.20, mean=3.53, max.=3.87) deg. U-B UB .310 mag .014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=3.20, mean=3.53, max.=3.87) deg. Tholen spectral type spec_T FCX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices 461 Saskia (1900 FP)          Discovered 1900-Oct-22 by Wolf, M. at Heidelberg (024) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1900 FP = 1935 CT = A917 XE = A924 DB  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-21 17:10 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin