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JPL Small-Body Database Browser
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6909 Levison (1991 BY2)
Classification: Mars-crossing Asteroid          SPK-ID: 2006909
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4670377321496077 5.9395e-08  
a 2.722403801367193 1.4835e-08 au
q 1.450938503981188 1.5826e-07 au
i 38.01541426013008 1.2587e-05 deg
node 308.2799776120575 1.0072e-05 deg
peri 75.58272670047971 1.8818e-05 deg
M 148.7344254290146 1.3738e-05 deg
tp 2457922.645880143738
(2017-Jun-18.14588014)
5.9897e-05 TDB
period 1640.692680557128
4.49
1.3411e-05
3.672e-08
d
yr
n .2194195197346497 1.7936e-09 deg/d
Q 3.993869098753198 2.1764e-08 au
  Orbit Determination Parameters
   # obs. used (total)      637  
   data-arc span      11675 days (31.96 yr)  
   first obs. used      1987-04-18  
   last obs. used      2019-04-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50503  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:47:21  

Additional Information
 Earth MOID = .713144 au 
 Jupiter MOID = 2.60568 au 
 T_jup = 2.919 
[ 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 13.8   n/a MPO435765  

6909 Levison (1991 BY2)          Discovered 1991-Jan-19 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 BY2 = 1994 OA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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