+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   372 Palma (1893 AH) Classification: Main-belt Asteroid          SPK-ID: 2000372 [ 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 54 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2605829767541478 5.6958e-08   a 3.148148713204249 8.5839e-09 AU q 2.327794750252746 1.7978e-07 AU i 23.83186919487694 8.6106e-06 deg node 327.3926796533613 1.6989e-05 deg peri 115.4738574246952 2.4625e-05 deg M 64.31530102815543 1.51e-05 deg tp 2456036.003726938404 (2012-Apr-18.50372694) 8.472e-05 JED period 2040.240132666577 5.59 8.3445e-06 2.285e-08 d yr n .1764498179581847 7.2167e-10 deg/d Q 3.968502676155753 1.0821e-08 AU   Orbit Determination Parameters    # obs. used (total)      1033      data-arc span      43088 days (117.97 yr)      first obs. used      1895-04-15      last obs. used      2013-04-04      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .57309      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:34:50   Additional Information  Earth MOID = 1.44015 AU   T_jup = 3.027  [ 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 7.20 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18 diameter diameter 188.62 km 3.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18 rotation period rot_per 8.567 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Zappala, V.; Scaltriti, F.; Di Martino, M. (1983) Icarus 56, 325-344.] [Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; et al. (1998) Astron. Astrophys. Suppl. Ser. 128, 525-540.] [Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.] [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.] [Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.0655   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18 Tholen spectral type spec_T BFC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a medium resolution spectrum published by Chapman and Gaffey (1979) SMASSII spectral type spec_B B   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) 372 Palma (1893 AH)          Discovered 1893-Aug-19 by Charlois, A. at Nice Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1893 AH = 1940 CN = 1949 SP1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-Jun-19 06:55 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin