+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3416 Dorrit (1931 VP) Classification: Mars-crossing Asteroid          SPK-ID: 2003416 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2069911952866863 3.8947e-08   a 1.91755382225658 5.3776e-09 au q 1.520637064561136 7.4312e-08 au i 22.06872058240711 4.0386e-06 deg node 19.92621335640821 9.9762e-06 deg peri 293.7616763939864 1.8634e-05 deg M 262.0361575634705 2.0994e-05 deg tp 2459464.426550256096 (2021-Sep-06.92655026) 5.7184e-05 TDB period 969.8839462504109 2.66 4.08e-06 1.117e-08 d yr n .3711784295345506 1.5614e-09 deg/d Q 2.314470579952023 6.4908e-09 au   Orbit Determination Parameters    # obs. used (total)      2146      data-arc span      32579 days (89.20 yr)      first obs. used      1931-11-08      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .37373      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:10:26   Additional Information  Earth MOID = .613584 au   Jupiter MOID = 3.17489 au   T_jup = 3.814  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.42   n/a E2021B10   rotation period rot_per 2.574 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D. (2010) Minor Planet Bull. 37, 161-165.] [Warner, B.D. (2015) Minor Planet Bull. 42, 167-172.] [Warner, B.D. (2017) Minor Planet Bull. 44, 116-120.] SMASSII spectral type spec_B Sa   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) 3416 Dorrit (1931 VP)          Discovered 1931-Nov-08 by Reinmuth, K. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1931 VP = 1984 UB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-08 15:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin