+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16708 (1995 SP1) Classification: Main-belt Asteroid          SPK-ID: 2016708 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2066948849705098 1.5458e-08   a 3.126389515220346 1.8454e-08 au q 2.480180793998869 5.3504e-08 au i 25.83743664184502 5.0446e-07 deg node 313.7688988208834 3.3926e-06 deg peri 116.2580389242248 5.6176e-06 deg M 154.6875340111073 7.9215e-06 deg tp 2458332.907337157213 (2018-Aug-02.40733716) 4.1545e-05 TDB period 2019.124298671516 5.53 1.7878e-05 4.895e-08 d yr n .1782951154799445 1.5787e-09 deg/d Q 3.772598236441824 2.2269e-08 au   Orbit Determination Parameters    # obs. used (total)      1399      data-arc span      14792 days (40.50 yr)      first obs. used      1979-12-18      last obs. used      2020-06-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .42006      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:39:37   Additional Information  Earth MOID = 1.59599 au   Jupiter MOID = 1.70995 au   T_jup = 3.030  [ 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 13.17   n/a E2021B10   diameter diameter 14.661 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.057   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   16708 (1995 SP1)          Discovered 1995-Sep-21 by Spahr, T. B. at Catalina Station Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1995 SP1 = 1979 YJ1 = 1997 AW10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-15 06:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin