+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70269 (1999 RR97) Classification: Main-belt Asteroid          SPK-ID: 2070269 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08747400240583852 4.1283e-08   a 2.384035967898657 8.6402e-09 au q 2.175494799907085 9.9686e-08 au i .5856149553980251 4.1683e-06 deg node 196.3980628595147 0.00031577 deg peri 194.3472321685693 0.00031639 deg M 253.0512561391609 2.2008e-05 deg tp 2459599.930127640262 (2022-Jan-20.43012764) 8.3408e-05 TDB period 1344.521130024671 3.68 7.3092e-06 2.001e-08 d yr n .2677533226966796 1.4556e-09 deg/d Q 2.59257713589023 9.396e-09 au   Orbit Determination Parameters    # obs. used (total)      1104      data-arc span      10147 days (27.78 yr)      first obs. used      1992-11-24      last obs. used      2020-09-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55676      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:01:24   Additional Information  Earth MOID = 1.17946 au   Jupiter MOID = 2.74463 au   T_jup = 3.531  [ 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 15.83   n/a E2021B10   diameter diameter 1.970 km 0.437 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.165   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70269 (1999 RR97)          Discovered 1999-Sep-07 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1999 RR97 = 2001 DG43  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-07 07:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin