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5938 Keller (1980 FH2)
Classification: Main-belt Asteroid          SPK-ID: 2005938
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07372377430103394 3.4153e-08  
a 2.337444703830335 7.4594e-09 au
q 2.165119458044001 8.0573e-08 au
i 3.554931870206476 3.8622e-06 deg
node 328.2249055981827 5.5649e-05 deg
peri 349.8162644046596 6.0726e-05 deg
M 201.6974327959928 2.4954e-05 deg
tp 2459174.478866879364
(2020-Nov-20.97886688)
9.1104e-05 TDB
period 1305.30032283229
3.57
6.2483e-06
1.711e-08
d
yr
n .2757985987614394 1.3202e-09 deg/d
Q 2.50976994961667 8.0093e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2093  
   data-arc span      23394 days (64.05 yr)  
   first obs. used      1955-04-20  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46278  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:12:58  

Additional Information
 Earth MOID = 1.15104 au 
 Jupiter MOID = 2.67832 au 
 T_jup = 3.560 
[ 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 14.1   n/a MPO384808  

5938 Keller (1980 FH2)          Discovered 1980-Mar-16 by Lagerkvist, C.-I. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1980 FH2 = 1978 VF2 = 1987 DJ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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