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249991 (2001 XX65)
Classification: Main-belt Asteroid          SPK-ID: 2249991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .207871123028729 5.2653e-08  
a 2.844974067846403 2.1013e-08 au
q 2.25358611337556 1.5161e-07 au
i 12.1753108263571 5.3733e-06 deg
node 272.3719916930887 2.5945e-05 deg
peri 122.0738521705393 2.9537e-05 deg
M 350.6396636638499 1.3327e-05 deg
tp 2459046.072709322959
(2020-Jul-15.57270932)
6.51e-05 TDB
period 1752.733530835177
4.80
1.9418e-05
5.316e-08
d
yr
n .2053934575145945 2.2755e-09 deg/d
Q 3.436362022317246 2.5381e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      6893 days (18.87 yr)  
   first obs. used      2001-12-09  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:13:50  

Additional Information
 Earth MOID = 1.28828 au 
 Jupiter MOID = 2.08814 au 
 T_jup = 3.243 
[ 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 15.8   n/a MPO494363  
diameter diameter 3.944 km 0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249991 (2001 XX65)          Discovered 2001-Dec-10 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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