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249975 (2001 VU4)
Classification: Main-belt Asteroid          SPK-ID: 2249975
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2114064583239497 6.5283e-08  
a 2.666878124514773 2.3863e-08 au
q 2.103082865429487 1.7997e-07 au
i 26.0658653571767 8.2778e-06 deg
node 268.9109126074645 1.4895e-05 deg
peri 87.10382617324623 2.538e-05 deg
M 107.0853071641541 2.2568e-05 deg
tp 2458527.315438673971
(2019-Feb-12.81543867)
9.5997e-05 TDB
period 1590.754573045598
4.36
2.1351e-05
5.846e-08
d
yr
n .2263076945369126 3.0375e-09 deg/d
Q 3.230673383600058 2.8908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      7987 days (21.87 yr)  
   first obs. used      1998-03-16  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46104  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:28:29  

Additional Information
 Earth MOID = 1.26853 au 
 Jupiter MOID = 2.50021 au 
 T_jup = 3.208 
[ 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 15.0   n/a MPO454854  
diameter diameter 5.924 km 1.379 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.048   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

249975 (2001 VU4)          Discovered 2001-Nov-11 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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