+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   109714 (2001 RL48) Classification: Main-belt Asteroid          SPK-ID: 2109714 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07007426620328439 3.3573e-08   a 3.090991477949371 1.9969e-08 au q 2.874392518291464 1.1044e-07 au i 15.30828376991835 5.1849e-06 deg node 186.532910048912 1.331e-05 deg peri 103.934811075952 3.9237e-05 deg M 309.1588950110015 3.7019e-05 deg tp 2459676.822281170864 (2022-Apr-07.32228117) 0.00020428 TDB period 1984.92973831604 5.43 1.9235e-05 5.266e-08 d yr n .1813666212212701 1.7575e-09 deg/d Q 3.307590437607279 2.1368e-08 au   Orbit Determination Parameters    # obs. used (total)      1183      data-arc span      7257 days (19.87 yr)      first obs. used      2001-08-04      last obs. used      2021-06-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53226      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 09:05:52   Additional Information  Earth MOID = 1.90708 au   Jupiter MOID = 1.87846 au   T_jup = 3.167  [ 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 14.13   n/a MPCxxxxx   diameter diameter 6.224 km 0.142 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 236.014 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.100   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   109714 (2001 RL48)          Discovered 2001-Sep-11 by Yeung, W. K. Y. at Desert Eagle Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jul-27 08:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin