+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   187715 (2008 EZ77) Classification: Main-belt Asteroid          SPK-ID: 2187715 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05356330672663338 1.0301e-07   a 2.909726026451549 2.1335e-08 au q 2.753871478806256 2.985e-07 au i 3.061277193386791 7.1044e-06 deg node 146.9577901838568 0.00014992 deg peri 230.0316992887584 0.00015881 deg M 13.51051758396385 4.7302e-05 deg tp 2459132.462858155893 (2020-Oct-09.96285816) 0.00023844 TDB period 1812.911378980083 4.96 1.994e-05 5.459e-08 d yr n .1985756194009498 2.1841e-09 deg/d Q 3.065580574096841 2.2478e-08 au   Orbit Determination Parameters    # obs. used (total)      287      data-arc span      6474 days (17.72 yr)      first obs. used      2003-03-23      last obs. used      2020-12-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .59712      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:56:33   Additional Information  Earth MOID = 1.75443 au   Jupiter MOID = 2.19915 au   T_jup = 3.280  [ 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 16.4   n/a MPO413004   diameter diameter 2.992 km 0.519 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.060   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   187715 (2008 EZ77)          Discovered 2008-Mar-07 by Spacewatch at Kitt Peak Reference: 20080520/Numbers.arc Last Updated: 2008-05-22 [ show close-approach data ] Alternate Designations  2008 EZ77 = 2003 FJ33  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-20 19:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin