+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   454 Mathesis (1900 FC) Classification: Main-belt Asteroid          SPK-ID: 2000454 [ 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 63 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1111470090611188 6.4198e-08   a 2.626957858014896 5.7816e-09 AU q 2.334979349166937 1.6802e-07 AU i 6.296312775460893 7.4066e-06 deg node 32.41619914565369 5.962e-05 deg peri 177.2579293458528 6.6788e-05 deg M 180.591532344706 3.0603e-05 deg tp 2457175.530014526636 (2015-Jun-02.03001453) 0.00013272 JED period 1555.170772461341 4.26 5.1341e-06 1.406e-08 d yr n .2314858318937118 7.6421e-10 deg/d Q 2.918936366862855 6.4242e-09 AU   Orbit Determination Parameters    # obs. used (total)      1263      data-arc span      41190 days (112.77 yr)      first obs. used      1900-03-31      last obs. used      2013-01-07      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .61078      data source      ORB      producer      Otto Matic      solution date      2013-Mar-29 14:56:06   Additional Information  Earth MOID = 1.32984 AU   T_jup = 3.384  [ 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 9.20 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3 diameter diameter 81.57 km 3.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3 rotation period rot_per 8.378 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Buchheim, R.K. (2006) Minor Planet Bul. 33, 29-30.] [Licchelli, D. (2006) Minor Planet Bul. 33, 105-106.] geometric albedo albedo 0.0555   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3 B-V BV .662 mag .055 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=4.19, mean=8.51, max.=13.15) deg. U-B UB .347 mag .058 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=4.19, mean=8.51, max.=13.15) deg. Tholen spectral type spec_T CB   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices 454 Mathesis (1900 FC)          Discovered 1900-Mar-28 by Schwassmann, A. at Heidelberg (024) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-23 00:00 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin