+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   117044 (2004 JX27) Classification: Main-belt Asteroid          SPK-ID: 2117044 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1073256072987234 4.5964e-08   a 2.605602083460158 1.8574e-08 au q 2.325954257473977 1.2809e-07 au i 6.930976645150867 4.4873e-06 deg node 255.205387672282 4.1317e-05 deg peri 316.0749172770159 4.9642e-05 deg M 313.4710546624805 2.9103e-05 deg tp 2459199.055203905844 (2020-Dec-15.55520391) 0.00012477 TDB period 1536.245296075187 4.21 1.6427e-05 4.497e-08 d yr n .234337576765723 2.5058e-09 deg/d Q 2.885249909446338 2.0568e-08 au   Orbit Determination Parameters    # obs. used (total)      636      data-arc span      6784 days (18.57 yr)      first obs. used      2001-09-25      last obs. used      2020-04-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58783      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:08:09   Additional Information  Earth MOID = 1.32509 au   Jupiter MOID = 2.11892 au   T_jup = 3.394  [ 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 15.5   n/a MPO412801   diameter diameter 5.095 km 1.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   geometric albedo albedo 0.028   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   117044 (2004 JX27)          Discovered 2004-May-15 by Siding Spring Survey at Siding Spring Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  2004 JX27 = 2001 SF347  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-13 06:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin