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307251 (2002 KW14)
Classification: TransNeptunian Object          SPK-ID: 2307251
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027709806288767 5.6e-05  
a 47.02672350677371 0.0061559 au
q 37.49106866554216 0.002621 au
i 9.749240191628328 0.00015987 deg
node 59.83215420721409 0.00014887 deg
peri 124.8916050038152 0.022023 deg
M 51.79857590870247 0.023057 deg
tp 2442052.017166848735
(1974-Jan-04.51716685)
4.2628 TDB
period 117791.9221309977
322.50
23.129
0.06332
d
yr
n .00305623673921918 6.001e-07 deg/d
Q 56.56237834800525 0.0074041 au
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      4746 days (12.99 yr)  
   first obs. used      2002-05-17  
   last obs. used      2015-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .52212  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 13:12:32  

Additional Information
 Earth MOID = 36.5031 au 
 Jupiter MOID = 32.0729 au 
 T_jup = 5.913 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456447.5 (2013-Jun-04.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2014035310357315 5.2672e-05  
q 37.1720784747388 0.0027317 au
tp 2441484.835102079143
(1972-Jun-16.33510208)
4.2865 TDB
node 59.85925151610974 0.00014881 deg
peri 121.9624349894266 0.022641 deg
i 9.778230933522329 0.0001606 deg
  Orbit Determination Parameters
   # obs. used (total)      90  
   data-arc span      4746 days (12.99 yr)  
   first obs. used      2002-05-17  
   last obs. used      2015-05-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .52212  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 13:12:32  

Additional Information
 Jupiter MOID = 32.0729 au 
 T_jup = 5.913 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.774344073676477E-9 1.036292485261505E-7 .0001858691743726885 -4.982769820142185E-10 9.451216762024664E-7 -3.117700456624119E-10
q 1.036292485261505E-7 7.461950493993717E-6 .01154835424758097 -2.817922401363295E-8 6.145184514890723E-5 -1.8432741291168E-8
tp .0001858691743726885 .01154835424758097 18.37440722617796 -4.558584678707349E-5 .09691399292878726 -2.955159063738141E-5
node -4.982769820142185E-10 -2.817922401363295E-8 -4.558584678707349E-5 2.214565234700395E-8 -2.60863504017872E-7 2.196605069028369E-8
peri 9.451216762024664E-7 6.145184514890723E-5 .09691399292878726 -2.60863504017872E-7 .0005126229805051987 -1.770492240811307E-7
i -3.117700456624119E-10 -1.8432741291168E-8 -2.955159063738141E-5 2.196605069028369E-8 -1.770492240811307E-7 2.579250057275935E-8

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.6   n/a MPO386274  
rotation period rot_per 8.58 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Ortiz, J.L.; Campo Bagatin, A.; Pravec, P.; et al. (2012) Mon. Not. Royal Ast. Soc. 424, 3156-3177.]

307251 (2002 KW14)          Discovered 2002-May-17 by Trujillo, C. A., Brown, M. E. at Palomar
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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