+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14402 (1991 DB) Classification: Amor [NEO]          SPK-ID: 2014402 [ 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 99 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .401808771294882 2.6082e-08   a 1.715002419968249 9.3712e-10 au q 1.025899404833057 4.4774e-08 au i 11.41751262861662 5.1601e-06 deg node 158.2205818419504 1.209e-05 deg peri 51.39236950042947 1.4762e-05 deg M 71.18437793134738 4.724e-06 deg tp 2459038.289961992355 (2020-Jul-07.78996199) 1.0679e-05 TDB period 820.3431058858317 2.25 6.7238e-07 1.841e-09 d yr n .438840769693872 3.5969e-10 deg/d Q 2.40410543510344 1.3137e-09 au   Orbit Determination Parameters    # obs. used (total)      668      data-arc span      10575 days (28.95 yr)      first obs. used      1991-02-13      last obs. used      2020-01-27      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46643      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:28:08   Additional Information  Earth MOID = .102378 au   Jupiter MOID = 2.59387 au   T_jup = 4.065  [ hide covariance matrix ] Orbital Elements at Epoch 2456616.5 (2013-Nov-20.0) TDB Reference: JPL 99 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4019138069982379 2.6134e-08   q 1.026016642400482 4.4714e-08 au tp 2456576.580451144055 (2013-Oct-11.08045114) 9.3027e-06 TDB node 158.2591930860821 1.2088e-05 deg peri 51.32939859998974 1.4763e-05 deg i 11.41738919916027 5.1601e-06 deg   Orbit Determination Parameters    # obs. used (total)      668      data-arc span      10575 days (28.95 yr)      first obs. used      1991-02-13      last obs. used      2020-01-27      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46643      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:28:08   Additional Information  Jupiter MOID = 2.59387 au   T_jup = 4.065  Orbit Covariance (6×6)   e q tp node peri i e 6.829807942397348E-16 -1.168429828744069E-15 2.614166933998699E-14 5.916326585197134E-14 -1.599387541410329E-14 -1.650925164486668E-14 q -1.168429828744069E-15 1.99931960435571E-15 -4.162448560383264E-14 -1.016202716061922E-13 2.89806931031638E-14 2.844304896288148E-14 tp 2.614166933998699E-14 -4.162448560383264E-14 8.654027528075555E-11 -3.623936177382623E-12 7.455679584896535E-11 -3.10952296404901E-12 node 5.916326585197134E-14 -1.016202716061922E-13 -3.623936177382623E-12 1.461131048331938E-10 -1.475505187899504E-10 1.128350033626667E-11 peri -1.599387541410329E-14 2.89806931031638E-14 7.455679584896535E-11 -1.475505187899504E-10 2.179417427569021E-10 -1.126701619640199E-11 i -1.650925164486668E-14 2.844304896288148E-14 -3.10952296404901E-12 1.128350033626667E-11 -1.126701619640199E-11 2.662669426818764E-11 [ 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 18.7   n/a MPO435836   diameter diameter 0.6 km n/a Delbo et al. (2003). Icarus, v. 166, pp. 116-130   rotation period rot_per 2.261 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2000) http://www.asu.cas.cz/~ppravec/neo.htm] [Koehn, B.W.; Bowell, E.L.G.; Skiff, B.A.; Sanborn, J.J.; et al. (2014) Minor Planet Bull. 41, 286-300.] [Hasegawa, S.; Kuroda, D.; Kitazato, K.; Kasuga, T.; et al. (2018) Pub. Astron. Soc. Japan 70, A114.] [Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.] geometric albedo albedo 0.14   n/a Delbo et al. (2003). Icarus, v. 166, pp. 116-130   SMASSII spectral type spec_B C   n/a Binzel et al. (2004) Icarus 170, 259-294   14402 (1991 DB)          Discovered 1991-Feb-18 by Helin, E. F. at Palomar Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-May-06 08:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin