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46622 (1994 EF7)
Classification: Main-belt Asteroid          SPK-ID: 2046622
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08953188757268775 5.7585e-08  
a 2.305289263657774 1.2541e-08 au
q 2.098892364481443 1.3118e-07 au
i 5.725268465923828 4.1296e-06 deg
node 52.17737357440829 6.0542e-05 deg
peri 137.7663323705001 6.5228e-05 deg
M 156.1645629904222 2.5083e-05 deg
tp 2458445.916993531917
(2018-Nov-23.41699353)
8.875e-05 TDB
period 1278.45830389033
3.50
1.0433e-05
2.856e-08
d
yr
n .2815891600879946 2.2978e-09 deg/d
Q 2.511686162834107 1.3664e-08 au
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      8799 days (24.09 yr)  
   first obs. used      1994-02-08  
   last obs. used      2018-03-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57286  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:38:31  

Additional Information
 Earth MOID = 1.10206 au 
 Jupiter MOID = 2.44752 au 
 T_jup = 3.576 
[ 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 15.5   n/a MPO337631  
rotation period rot_per 4.938 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

46622 (1994 EF7)          Discovered 1994-Mar-09 by Elst, E. W. at Caussols
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 EF7 = 1999 TS214 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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