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187945 (2001 KJ43)
Classification: Main-belt Asteroid          SPK-ID: 2187945
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1082587093149793 3.7988e-08  
a 2.291490210037691 1.1471e-08 au
q 2.043416437491099 8.6766e-08 au
i 6.30493684212348 5.5091e-06 deg
node 156.1924013626975 3.6879e-05 deg
peri 91.69566788563165 4.523e-05 deg
M 221.1452761781895 2.6623e-05 deg
tp 2459689.190159893349
(2022-Apr-19.69015989)
9.5035e-05 TDB
period 1266.996561005525
3.47
9.514e-06
2.605e-08
d
yr
n .284136524975485 2.1336e-09 deg/d
Q 2.539563982584282 1.2713e-08 au
  Orbit Determination Parameters
   # obs. used (total)      449  
   data-arc span      8190 days (22.42 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60304  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:57:36  

Additional Information
 Earth MOID = 1.04008 au 
 Jupiter MOID = 2.48893 au 
 T_jup = 3.582 
[ 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 16.7   n/a MPO494036  
rotation period rot_per 1.72 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

187945 (2001 KJ43)          Discovered 2001-May-22 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 2001 KJ43 = 2004 CE84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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