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437851 (1999 TT278)
Classification: Main-belt Asteroid          SPK-ID: 2437851
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2859743171268519 6.5264e-08  
a 2.648005362440387 1.9421e-08 au
q 1.890743837168256 1.793e-07 au
i 12.83962534434726 6.7086e-06 deg
node 219.127218671003 2.3871e-05 deg
peri 179.3365339257292 2.7662e-05 deg
M 286.6469753957664 1.1982e-05 deg
tp 2459321.195039645422
(2021-Apr-16.69503965)
5.4398e-05 TDB
period 1573.898484694366
4.31
1.7315e-05
4.741e-08
d
yr
n .2287313975462071 2.5163e-09 deg/d
Q 3.405266887712519 2.4975e-08 au
  Orbit Determination Parameters
   # obs. used (total)      177  
   data-arc span      7596 days (20.80 yr)  
   first obs. used      1999-10-06  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .66735  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 09:33:47  

Additional Information
 Earth MOID = .898542 au 
 Jupiter MOID = 2.02303 au 
 T_jup = 3.298 
[ 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 16.9   n/a MPO450438  
diameter diameter 2.090 km 0.611 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.064   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

437851 (1999 TT278)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: Last Updated: 2015-07-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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