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277818 (2006 GR18)
Classification: Main-belt Asteroid          SPK-ID: 2277818
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02604832731635106 6.4812e-08  
a 2.90964874441065 3.8555e-08 au
q 2.833857261540631 1.9034e-07 au
i 3.107458624475511 6.1994e-06 deg
node 97.41018478188646 0.00012595 deg
peri 96.34651240388638 0.00017837 deg
M 317.3371782668229 0.00012982 deg
tp 2459215.335648971170
(2020-Dec-31.83564897)
0.00065554 TDB
period 1812.839153334218
4.96
3.6032e-05
9.865e-08
d
yr
n .1985835308873814 3.947e-09 deg/d
Q 2.985440227280668 3.9559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      5523 days (15.12 yr)  
   first obs. used      2004-12-19  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56887  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:15:07  

Additional Information
 Earth MOID = 1.83369 au 
 Jupiter MOID = 1.97295 au 
 T_jup = 3.281 
[ 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 16.5   n/a MPO470939  

277818 (2006 GR18)          Discovered 2006-Apr-02 by Spacewatch at Kitt Peak
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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