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JPL Small-Body Database Browser
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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2114064497307669 6.6312e-08  
a 2.666878127846591 2.4284e-08 au
q 2.103082890973909 1.8326e-07 au
i 26.06586536091817 8.278e-06 deg
node 268.9109135590223 1.5077e-05 deg
peri 87.10382629767156 2.5535e-05 deg
M 107.0853051082696 2.2761e-05 deg
tp 2458527.315446871688
(2019-Feb-12.81544687)
9.6725e-05 TDB
period 1590.754576026671
4.36
2.1728e-05
5.949e-08
d
yr
n .2263076941128121 3.0911e-09 deg/d
Q 3.230673364719273 2.9418e-08 au
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      7965 days (21.81 yr)  
   first obs. used      1998-03-16  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45913  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 03:18:06  

Additional Information
 Earth MOID = 1.26853 au 
 Jupiter MOID = 2.50021 au 
 T_jup = 3.208 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457022.5 (2014-Dec-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2121397883887947 6.6856e-08  
q 2.100486817196654 1.8505e-07 au
tp 2456934.834776214806
(2014-Oct-04.33477621)
8.4775e-05 TDB
node 269.0705806873538 1.5079e-05 deg
peri 86.5760922556361 2.534e-05 deg
i 26.05247138040189 8.2803e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      383  
   data-arc span      7965 days (21.81 yr)  
   first obs. used      1998-03-16  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45913  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 03:18:06  

Additional Information
 Jupiter MOID = 2.50021 au 
 T_jup = 3.208 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.469716642968589E-15 -1.231006148854258E-14 -1.787070668216378E-12 -9.655233506537306E-15 -5.470272426563271E-13 -2.89089855877059E-15
q -1.231006148854258E-14 3.424310658969692E-14 5.449829413033644E-12 2.704228066562338E-14 1.625585108912004E-12 1.060015375925788E-14
tp -1.787070668216378E-12 5.449829413033644E-12 7.186865145734878E-9 -1.171545483525882E-11 1.757593642189852E-9 -4.484499328884415E-12
node -9.655233506537306E-15 2.704228066562338E-14 -1.171545483525882E-11 2.273855516883082E-10 -2.06006351269252E-10 2.152411169036879E-11
peri -5.470272426563271E-13 1.625585108912004E-12 1.757593642189852E-9 -2.06006351269252E-10 6.421352451140393E-10 -2.036196374633831E-11
i -2.89089855877059E-15 1.060015375925788E-14 -4.484499328884415E-12 2.152411169036879E-11 -2.036196374633831E-11 6.856270663130177E-11

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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