+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   3833 Calingasta (1971 SC) Classification: Mars-crossing Asteroid          SPK-ID: 2003833 [ 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 .3882813751539985 9.9426e-08   a 2.196056126178009 3.6103e-09 AU q 1.343368433590249 2.1796e-07 AU i 11.99453150383005 1.1107e-05 deg node 170.2323605335195 2.9115e-05 deg peri 173.8933983533822 3.0832e-05 deg M 285.5906015277144 7.4759e-06 deg tp 2456646.190787899544 (2013-Dec-19.69078790) 2.4992e-05 JED period 1188.676235257824 3.25 2.9313e-06 8.025e-09 d yr n .3028579097670914 7.4685e-10 deg/d Q 3.048743818765769 5.0121e-09 AU   Orbit Determination Parameters    # obs. used (total)      465      data-arc span      15233 days (41.71 yr)      first obs. used      1971-08-01      last obs. used      2013-04-15      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .57209      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:59:52   Additional Information  Earth MOID = .336704 AU   T_jup = 3.541  [ 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 15.0 mag n/a PDS3 (MPC 28110)   rotation period rot_per 199. h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2010) http://www.asu.cas.cz/~ppravec/neo.htm] [Megna, R. (2011) http://www.macastronomy.com/MacAstronomy.com/ Asteroids.html] [Owings, L.E. (2013) Minor Planet Bul. 40, 8-10.] SMASSII spectral type spec_B Cb   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 3833 Calingasta (1971 SC)          Discovered 1971-Sep-27 by Gibson, J. and Cesco, C. U. at El Leoncito Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1971 SC = 1984 SC  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-23 22:50 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin