+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   1253 Frisia (1931 TV1) Classification: Main-belt Asteroid          SPK-ID: 2001253 [ 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 .2122199439686282 6.3345e-08   a 3.16191793082083 2.0626e-08 AU q 2.490895884708633 2.0047e-07 AU i 1.347818060815733 6.3604e-06 deg node 40.03059479191148 0.00026001 deg peri 355.3272114876505 0.00026047 deg M 157.8618204110527 1.493e-05 deg tp 2455499.968470761393 (2010-Oct-30.46847076) 8.1682e-05 JED period 2053.640010496169 5.62 2.0095e-05 5.502e-08 d yr n .1752984934847575 1.7153e-09 deg/d Q 3.832939976933027 2.5004e-08 AU   Orbit Determination Parameters    # obs. used (total)      1405      data-arc span      29778 days (81.53 yr)      first obs. used      1931-10-09      last obs. used      2013-04-19      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .51088      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:42:56   Additional Information  Earth MOID = 1.49704 AU   T_jup = 3.169  [ 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 11.5 mag n/a PDS3 (MPC 17261)   diameter diameter 26 km n/a DASTCOM value unverified rotation period rot_per 14.557 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Gartrelle, G. (2012) Minor Planet Bul. 39, 40-46.] geometric albedo albedo 0.0657   0.016 EAR-A-5-DDR-ALBEDOS-V1.0:IMPS IMPS quality code 2: from the PDS IMPS singleton file 1253 Frisia (1931 TV1)          Discovered 1931-Oct-09 by Reinmuth, K. at Heidelberg (024) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1931 TV1 = 1933 BO = 1937 VN = 1948 SE = 1954 UC = 1959 RC = 1971 UE3  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-25 20:31 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin