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249302 Ajoie (2008 UM7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249302
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 .299624538789089 7.8309e-08  
a 3.91966364594134 7.9689e-08 au
q 2.745236233817807 3.2896e-07 au
i 5.612551666172516 1.1368e-05 deg
node 138.5237927371881 8.7521e-05 deg
peri 258.4130538238088 8.9717e-05 deg
M 190.0907205739814 2.0621e-05 deg
tp 2460338.284702813204
(2024-Jan-28.78470281)
0.00019174 TDB
period 2834.468456576861
7.76
8.644e-05
2.367e-07
d
yr
n .1270079401182562 3.8732e-09 deg/d
Q 5.094091058064874 1.0357e-07 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      7111 days (19.47 yr)  
   first obs. used      2000-10-31  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60644  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 13:42:45  

Additional Information
 Earth MOID = 1.75964 au 
 Jupiter MOID = .525386 au 
 T_jup = 2.976 
[ 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 15.2   n/a MPO427415  
diameter diameter 6.978 km 0.685 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.036   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

249302 Ajoie           Discovered 2008 Oct. 26 by M. Ory at Vicques.
Ajoie is the name of a region in the North of Swiss Jura. The main city in Ajoie is Porrentruy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

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