+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1607 Mavis (1950 RA) Classification: Main-belt Asteroid          SPK-ID: 2001607 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3027654873762298 3.8733e-08   a 2.551327948258039 5.4226e-09 au q 1.778873898547098 9.9856e-08 au i 8.580951289643247 3.9146e-06 deg node 122.3904318995279 2.5581e-05 deg peri 236.0950563463563 2.6087e-05 deg M 40.60914278387326 6.6142e-06 deg tp 2458832.592854704348 (2019-Dec-15.09285470) 2.7027e-05 TDB period 1488.496633089223 4.08 4.7455e-06 1.299e-08 d yr n .2418547627164307 7.7106e-10 deg/d Q 3.32378199796898 7.0644e-09 au   Orbit Determination Parameters    # obs. used (total)      2924      data-arc span      43033 days (117.82 yr)      first obs. used      1903-01-22      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41826      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:01:39   Additional Information  Earth MOID = .791046 au   Jupiter MOID = 2.1649 au   T_jup = 3.359  [ 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 11.3   n/a MPO435711   diameter diameter 12.756 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 6.1339 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Bembrick, C.; Allen, B.; Bolt, G. (2008) Minor Planet Bull. 35, 74-75.] [Oey, J. (2008) Minor Planet Bull. 35, 132-135.] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] geometric albedo albedo 0.193   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   1607 Mavis (1950 RA)          Discovered 1950-Sep-03 by Johnson, E. L. at Johannesburg (UO) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1950 RA = 1934 VQ = 1958 OB = 1958 PD = A903 BH  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-21 09:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin