+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3850 Peltier (1986 TK2) Classification: Main-belt Asteroid          SPK-ID: 2003850 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1615752448349521 3.4087e-08   a 2.234510470536801 6.2374e-09 au q 1.873468894173553 7.6682e-08 au i 5.269758469181926 3.6178e-06 deg node 124.0973147121577 4.0515e-05 deg peri 207.1959681571468 4.1874e-05 deg M 62.04094982267049 1.1884e-05 deg tp 2458790.244214340653 (2019-Nov-02.74421434) 4.0018e-05 TDB period 1220.034236318316 3.34 5.1084e-06 1.399e-08 d yr n .2950736866912588 1.2355e-09 deg/d Q 2.595552046900048 7.2452e-09 au   Orbit Determination Parameters    # obs. used (total)      2158      data-arc span      18413 days (50.41 yr)      first obs. used      1969-08-08      last obs. used      2020-01-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48898      source      ORB      producer      Otto Matic      solution date      2020-Jan-28 19:16:16   Additional Information  Earth MOID = .864224 au   Jupiter MOID = 2.74181 au   T_jup = 3.617  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.6   n/a MPO492796   rotation period rot_per 2.4289 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Oey, J.; Vilagi, J.; Gajdos, S.; Kornos, L.; Galad, A. (2007) Minor Planet Bull. 34, 81-83.] [Pravec, P.; Wolf, M.; Sarounova, L. (2013) http://www.asu.cas.cz/~ppravec/neo.htm] SMASSII spectral type spec_B V   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) 3850 Peltier (1986 TK2)          Discovered 1986-Oct-07 by Bowell, E. at Flagstaff (AM) Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1986 TK2 = 1949 PC = 1969 OC1 = 1979 OX13 = 1982 OW  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-18 10:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin