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2549 Baker (1976 UB)
Classification: Main-belt Asteroid          SPK-ID: 2002549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1760762460193877 3.2374e-08  
a 3.193132011018555 1.6606e-08 au
q 2.630897313474069 1.0297e-07 au
i .06671149150575892 3.8444e-06 deg
node 193.9799244326697 0.0028048 deg
peri 203.1720942876258 0.0028048 deg
M 168.5858081862016 1.0385e-05 deg
tp 2457624.517009692232
(2016-Aug-24.01700969)
5.7562e-05 TDB
period 2084.12487558104
5.71
1.6258e-05
4.451e-08
d
yr
n .1727343712548099 1.3475e-09 deg/d
Q 3.75536670856304 1.953e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2053  
   data-arc span      23516 days (64.38 yr)  
   first obs. used      1954-12-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46832  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 21:35:26  

Additional Information
 Earth MOID = 1.6376 au 
 Jupiter MOID = 1.66985 au 
 T_jup = 3.172 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6   n/a MPO435721  
diameter diameter 17.039 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2549 Baker (1976 UB)          Discovered 1976-Oct-23 by Harvard College at Agassiz Station
Discovered at Oak Ridge Observatory (until 1981 Harvard College's Agassiz Station). The principal observers are R. E. McCrosky, C.-Y. Shao, G. Schwartz, and J. H. Bulger, with some assistance from others.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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