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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08953730029485407 5.0265e-08  
a 2.305289707673023 1.0239e-08 au
q 2.098880290850467 1.1604e-07 au
i 5.725229272034644 4.0294e-06 deg
node 52.17729222173934 4.7721e-05 deg
peri 137.689934702413 5.1666e-05 deg
M 212.5736683793795 2.2257e-05 deg
tp 2459724.051312016437
(2022-May-24.55131202)
8.0513e-05 TDB
period 1278.458673250707
3.50
8.5174e-06
2.332e-08
d
yr
n .281589078733876 1.876e-09 deg/d
Q 2.511699124495578 1.1156e-08 au
  Orbit Determination Parameters
   # obs. used (total)      927  
   data-arc span      9834 days (26.92 yr)  
   first obs. used      1994-02-08  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55156  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:50:48  

Additional Information
 Earth MOID = 1.10138 au 
 Jupiter MOID = 2.44644 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 15.51   n/a E2021B10  
rotation period rot_per 4.938 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:
[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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