+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   74739 (1999 RG184) Classification: Main-belt Asteroid          SPK-ID: 2074739 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1986338125674642 3.4847e-08   a 2.365631114940245 1.034e-08 au q 1.895736787451443 8.4152e-08 au i 3.325784989499915 3.9763e-06 deg node 91.44977873900189 6.8368e-05 deg peri 219.2624134436979 6.9081e-05 deg M 276.629504970181 9.9444e-06 deg tp 2459308.271812403251 (2021-Apr-03.77181240) 3.7135e-05 TDB period 1328.98158305935 3.64 8.7137e-06 2.386e-08 d yr n .270884115016305 1.7761e-09 deg/d Q 2.835525442429046 1.2394e-08 au   Orbit Determination Parameters    # obs. used (total)      775      data-arc span      10638 days (29.13 yr)      first obs. used      1991-04-10      last obs. used      2020-05-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53462      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:42:33   Additional Information  Earth MOID = .882697 au   Jupiter MOID = 2.43258 au   T_jup = 3.519  [ 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 15.9   n/a MPO426453   diameter diameter 1.461 km 0.387 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.361   0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   74739 (1999 RG184)          Discovered 1999-Sep-09 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2048-Oct-21 13:06 00:02 Europ 0.0356395104523101 0.035636437160229 0.0356425840924717 3.7184366963964 3.71843661619543 2469371.046048048 2.3133759820482 243.485480731792 57.3300014196052 -53.1159657002459 75477.0585616486 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 21:42:34 2020-Nov-12 21:42 Alternate Designations  1999 RG184 = 2002 GG14  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 08:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin