+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   921 Jovita (A919 RD) Classification: Main-belt Asteroid          SPK-ID: 2000921 [ 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 57 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1846020637672448 3.1922e-08   a 3.169522688071491 1.0826e-08 au q 2.584422258696388 1.0651e-07 au i 16.33647529791552 3.4121e-06 deg node 204.9051760457387 1.1938e-05 deg peri 70.91168269672644 1.6002e-05 deg M 331.1860598369099 1.0714e-05 deg tp 2459165.464073943170 (2020-Nov-11.96407394) 6.1807e-05 TDB period 2061.053305566815 5.64 1.056e-05 2.891e-08 d yr n .1746679714821814 8.9494e-10 deg/d Q 3.754623117446593 1.2825e-08 au   Orbit Determination Parameters    # obs. used (total)      2947      data-arc span      36940 days (101.14 yr)      first obs. used      1919-09-05      last obs. used      2020-10-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39956      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:24:23   Additional Information  Earth MOID = 1.62477 au   Jupiter MOID = 1.54388 au   T_jup = 3.114  [ 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 10.0   n/a MPO347521   diameter diameter 55.312 km 0.200 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 15.64 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D. (2005) Minor Planet Bull. 32, 4-7.] geometric albedo albedo 0.048   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   921 Jovita (A919 RD)          Discovered 1919-Sep-04 by Reinmuth, K. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A919 RD = 1976 WM  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 23:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin