+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2923 Schuyler (1977 DA) Classification: Main-belt Asteroid          SPK-ID: 2002923 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1316361493186715 3.8529e-08   a 2.454656887046076 9.0637e-09 au q 2.131535306536773 9.4725e-08 au i 2.871282437318285 4.4354e-06 deg node 350.6941444619277 7.7149e-05 deg peri 172.6257330312424 7.8751e-05 deg M 79.89465565078352 1.8023e-05 deg tp 2458688.754748074471 (2019-Jul-24.25474807) 6.9567e-05 TDB period 1404.703353172156 3.85 7.7802e-06 2.13e-08 d yr n .2562818684721112 1.4195e-09 deg/d Q 2.777778467555379 1.0257e-08 au   Orbit Determination Parameters    # obs. used (total)      2029      data-arc span      22666 days (62.06 yr)      first obs. used      1958-04-08      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49194      source      ORB      producer      Otto Matic      solution date      2020-May-20 01:47:12   Additional Information  Earth MOID = 1.13933 au   Jupiter MOID = 2.19788 au   T_jup = 3.480  [ 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 13.7   n/a MPO384777   diameter diameter 9.290 km 1.400 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.074   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   2923 Schuyler (1977 DA)          Discovered 1977-Feb-22 by Harvard College at Agassiz Station Discovered at Oak Ridge Observatory (until 1981 Harvard College's Agassiz Station). The principal observers are R. E. McCrosky, C.-Y. Shao, G. Schwartz, and J. H. Bulger, with some assistance from others. Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1977 DA = 1958 GG = 1977 DF3 = 1979 SP11 = 1981 EY24  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-02 13:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin