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451200 (2009 UB17)
Classification: Main-belt Asteroid          SPK-ID: 2451200
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2772432538504291 5.7805e-08  
a 3.160718909350973 5.4692e-08 au
q 2.28443091441593 2.042e-07 au
i 25.85909837815498 9.2813e-06 deg
node 61.15198424063613 1.3508e-05 deg
peri 270.8740725711901 2.2185e-05 deg
M 27.94657380772707 1.5128e-05 deg
tp 2459041.167889071898
(2020-Jul-10.66788907)
8.7063e-05 TDB
period 2052.471989187352
5.62
5.3273e-05
1.459e-07
d
yr
n .175398252398337 4.5525e-09 deg/d
Q 4.037006904286016 6.9855e-08 au
  Orbit Determination Parameters
   # obs. used (total)      288  
   data-arc span      8128 days (22.25 yr)  
   first obs. used      1998-11-11  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58716  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 15:14:57  

Additional Information
 Earth MOID = 1.44267 au 
 Jupiter MOID = 1.9843 au 
 T_jup = 2.994 
[ 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 15.27   n/a E2021B25  
diameter diameter 5.429 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

451200 (2009 UB17)          Discovered 2009-Oct-20 by Sachs, J. at Tzec Maun
Reference: Last Updated: 2015-11-30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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