+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   25330 (1999 KV4) Classification: Apollo [NEO]          SPK-ID: 2025330 [ 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 165 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3708585091677292 3.9873e-08   a 1.54039946597692 4.1676e-09 au q .9691292165019534 6.2004e-08 au i 14.32801756415022 5.8959e-06 deg node 50.60164687721942 1.8238e-05 deg peri 85.97377647772463 2.0832e-05 deg M 24.44792379231997 1.8106e-05 deg tp 2458953.077117477284 (2020-Apr-13.57711748) 3.4938e-05 TDB period 698.3103290570898 1.91 2.8339e-06 7.759e-09 d yr n .5155301089217721 2.0922e-09 deg/d Q 2.111669715451887 5.7132e-09 au   Orbit Determination Parameters    # obs. used (total)      886      data-arc span      14818 days (40.57 yr)      first obs. used      1979-11-16      last obs. used      2020-06-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53465      source      ORB      producer      Otto Matic      solution date      2020-Dec-19 05:50:34   Additional Information  Earth MOID = .172941 au   Jupiter MOID = 3.02341 au   T_jup = 4.357  [ 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 16.6   n/a MPO214046   diameter diameter 3.21 km n/a Delbo et al. (2003). Icarus, v. 166, pp. 116-130   rotation period rot_per 4.919 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2002) http://www.asu.cas.cz/~ppravec/neo.htm] geometric albedo albedo 0.052   n/a Delbo et al. (2003). Icarus, v. 166, pp. 116-130   SMASSII spectral type spec_B B   n/a Binzel et al. (2004) Icarus 170, 259-294   25330 (1999 KV4)          Discovered 1999-May-17 by CSS at Catalina Reference: 20010606/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 KV4 = 1979 WC2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 18:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin