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277989 (2006 US7)
Classification: Main-belt Asteroid          SPK-ID: 2277989
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2198837333375955 4.5244e-08  
a 2.632771257527969 1.9778e-08 au
q 2.053867684398803 1.2001e-07 au
i 4.349677637330951 6.4963e-06 deg
node 182.5812098780289 6.6254e-05 deg
peri 201.2939835201428 7.0629e-05 deg
M 76.77509216802635 2.4625e-05 deg
tp 2458667.736284625153
(2019-Jul-03.23628463)
0.00010415 TDB
period 1560.33596511701
4.27
1.7582e-05
4.814e-08
d
yr
n .2307195424884048 2.5998e-09 deg/d
Q 3.211674830657135 2.4126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      9605 days (26.30 yr)  
   first obs. used      1993-09-18  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57515  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:16:36  

Additional Information
 Earth MOID = 1.05805 au 
 Jupiter MOID = 2.24411 au 
 T_jup = 3.360 
[ 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 17.2   n/a MPO476191  

277989 (2006 US7)          Discovered 2006-Oct-16 by CSS at Catalina
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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