+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70411 (1999 SF3) Classification: Main-belt Asteroid          SPK-ID: 2070411 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2910152832300273 5.6648e-08   a 2.412739786105559 1.0042e-08 au q 1.710595633891694 1.3593e-07 au i 23.23190721235101 6.5982e-06 deg node 290.8756200333895 1.6477e-05 deg peri 136.2499229102914 2.2975e-05 deg M 147.4977543436049 1.0546e-05 deg tp 2458439.649562470424 (2018-Nov-17.14956247) 4.0271e-05 TDB period 1368.876146007584 3.75 8.5462e-06 2.34e-08 d yr n .2629894611356647 1.6419e-09 deg/d Q 3.114883938319423 1.2965e-08 au   Orbit Determination Parameters    # obs. used (total)      1013      data-arc span      10434 days (28.57 yr)      first obs. used      1991-07-08      last obs. used      2020-01-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .37534      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 16:09:56   Additional Information  Earth MOID = .778941 au   Jupiter MOID = 2.28818 au   T_jup = 3.354  [ 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 13.3   n/a MPO474582   diameter diameter 5.388 km 0.947 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   rotation period rot_per 2.8420 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2014) http://www.asu.cas.cz/~ppravec/neo.htm] geometric albedo albedo 0.291   0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   70411 (1999 SF3)          Discovered 1999-Sep-22 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1999 SF3 = 1991 NP4 = 2000 AT3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-24 08:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin