+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   74349 (1998 VM54) Classification: Main-belt Asteroid          SPK-ID: 2074349 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1380920211622462 5.1971e-08   a 2.761895994422358 1.6903e-08 au q 2.380500194312663 1.4884e-07 au i 13.76439720133237 5.536e-06 deg node 321.3749578083237 1.8393e-05 deg peri 352.9020443010421 2.4456e-05 deg M 335.2777241438304 1.6361e-05 deg tp 2459115.631815869165 (2020-Sep-23.13181587) 7.6375e-05 TDB period 1676.52258044665 4.59 1.5391e-05 4.214e-08 d yr n .2147301827000092 1.9712e-09 deg/d Q 3.143291794532053 1.9237e-08 au   Orbit Determination Parameters    # obs. used (total)      874      data-arc span      7886 days (21.59 yr)      first obs. used      1998-11-14      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57915      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 23:49:38   Additional Information  Earth MOID = 1.36754 au   Jupiter MOID = 2.16703 au   T_jup = 3.286  [ 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 14.5   n/a MPO290959   diameter diameter 3.455 km 0.621 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.147   0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   74349 (1998 VM54)          Discovered 1998-Nov-14 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 VM54 = 2000 CG123  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-08 12:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin