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120465 (1991 TO15)
Classification: Main-belt Asteroid          SPK-ID: 2120465
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 .274436800608194 7.1502e-08  
a 2.664792816992125 1.1879e-08 au
q 1.933475602013109 1.9327e-07 au
i .5521051514679425 7.8564e-06 deg
node 35.94338358078248 0.00047091 deg
peri 333.7283062971159 0.00047097 deg
M 220.3403165361501 7.6359e-06 deg
tp 2459616.899322978270
(2022-Feb-06.39932298)
3.5609e-05 TDB
period 1588.889153752204
4.35
1.0624e-05
2.909e-08
d
yr
n .2265733888042791 1.515e-09 deg/d
Q 3.396110031971141 1.5139e-08 au
  Orbit Determination Parameters
   # obs. used (total)      451  
   data-arc span      10448 days (28.61 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53605  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:57:00  

Additional Information
 Earth MOID = .933067 au 
 Jupiter MOID = 2.06788 au 
 T_jup = 3.329 
[ 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 16.2   n/a MPO280590  
diameter diameter 4.477 km 1.358 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.032   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120465 (1991 TO15)          Discovered 1991-Oct-06 by Lowe, A. at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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