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249151 (2008 AW77)
Classification: Main-belt Asteroid          SPK-ID: 2249151
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .005417654456313594 5.9236e-08  
a 2.955313573047707 4.1438e-08 au
q 2.939302705298881 1.6932e-07 au
i 2.382821556080204 6.317e-06 deg
node 21.61133883991605 0.0001554 deg
peri 160.0666956865606 0.00073279 deg
M 99.03575365069536 0.00071113 deg
tp 2458490.002887947998
(2019-Jan-06.50288795)
0.0036703 TDB
period 1855.682958569885
5.08
3.9029e-05
1.069e-07
d
yr
n .1939986560405988 4.0802e-09 deg/d
Q 2.971324440796533 4.1662e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      6406 days (17.54 yr)  
   first obs. used      2001-10-17  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58502  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:20:03  

Additional Information
 Earth MOID = 1.93485 au 
 Jupiter MOID = 1.98456 au 
 T_jup = 3.267 
[ 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 16.4   n/a MPO433632  
diameter diameter 3.719 km 0.843 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.027   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249151 (2008 AW77)          Discovered 2008-Jan-12 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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