+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22853 (1999 RH130) Classification: Main-belt Asteroid          SPK-ID: 2022853 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .216274137412831 3.9905e-08   a 2.381149656946342 8.003e-09 au q 1.866168568839413 9.357e-08 au i 2.828142159416925 3.7002e-06 deg node 164.7638401437007 7.2804e-05 deg peri 217.5149061684939 7.3189e-05 deg M 253.5290547448233 9.1495e-06 deg tp 2459597.423739104281 (2022-Jan-17.92373910) 3.5421e-05 TDB period 1342.080186618738 3.67 6.7661e-06 1.852e-08 d yr n .2682403060483224 1.3523e-09 deg/d Q 2.896130745053271 9.7339e-09 au   Orbit Determination Parameters    # obs. used (total)      1198      data-arc span      11613 days (31.79 yr)      first obs. used      1988-09-02      last obs. used      2020-06-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53972      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 04:13:48   Additional Information  Earth MOID = .868818 au   Jupiter MOID = 2.56228 au   T_jup = 3.505  [ 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 15.37   n/a E2021B10   diameter diameter 2.078 km 0.480 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.373   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   22853 (1999 RH130)          Discovered 1999-Sep-09 by LINEAR at Socorro Reference: 20010309/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 RH130 = 1988 RL5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 03:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin