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43862 (1994 EK1)
Classification: Main-belt Asteroid          SPK-ID: 2043862
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06222119944547302 3.9281e-08  
a 2.342352209157916 7.2291e-09 au
q 2.196608245180357 9.1443e-08 au
i 7.431820127538734 4.4782e-06 deg
node 25.21798044914669 2.5705e-05 deg
peri 187.588974028374 3.9491e-05 deg
M 139.3238523491473 3.0817e-05 deg
tp 2458693.743067837000
(2019-Jul-29.24306784)
0.00011176 TDB
period 1309.413230417301
3.58
6.0618e-06
1.66e-08
d
yr
n .2749323068052936 1.2728e-09 deg/d
Q 2.488096173135475 7.6789e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1851  
   data-arc span      9816 days (26.87 yr)  
   first obs. used      1994-03-06  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46732  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:23:19  

Additional Information
 Earth MOID = 1.1898 au 
 Jupiter MOID = 2.47164 au 
 T_jup = 3.549 
[ 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 14.46   n/a E2021B10  
rotation period rot_per 8.255 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]

43862 (1994 EK1)          Discovered 1994-Mar-06 by Kobayashi, T. at Oizumi
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 EK1 = 1999 VY43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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