+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22395 Ourakenji (1994 TD3) Classification: Main-belt Asteroid          SPK-ID: 2022395 [ 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 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1064008430933822 1.7547e-08   a 2.778459268323251 1.2265e-08 au q 2.482828859673036 5.2907e-08 au i 8.742131380738202 1.2162e-06 deg node 17.94835810501896 5.1024e-06 deg peri 326.8209433096297 9.7076e-06 deg M 267.0801945417544 1.1237e-05 deg tp 2459637.126680037144 (2022-Feb-26.62668004) 5.3765e-05 TDB period 1691.626494891928 4.63 1.1201e-05 3.067e-08 d yr n .2128129354127899 1.4091e-09 deg/d Q 3.074089676973467 1.357e-08 au   Orbit Determination Parameters    # obs. used (total)      2020      data-arc span      14516 days (39.74 yr)      first obs. used      1980-10-14      last obs. used      2020-07-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47814      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 04:05:23   Additional Information  Earth MOID = 1.47986 au   Jupiter MOID = 2.35776 au   T_jup = 3.309  [ 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 13.43   n/a E2021B10   diameter diameter 5.194 km 0.302 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.344   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   22395 Ourakenji           Discovered 1994 Oct. 2 by K. Endate and K. Watanabe at Kitami. Kenji Oura (b. 1965) is the director of the Kanoya City Planetarium, Kagoshima prefecture. He organizes local star parties for amateur astronomers and lay persons alike. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2019-12-12 Last Updated: 2019-12-13 Alternate Designations  1994 TD3 = 1980 TK3 = 1999 XL129  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-21 06:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin