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117291 (2004 TK287)
Classification: Main-belt Asteroid          SPK-ID: 2117291
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1839263465412884 3.2474e-08  
a 2.268824456575562 9.6749e-09 au
q 1.851527863334095 7.5136e-08 au
i 3.446069008646115 4.4275e-06 deg
node 141.3048627900571 6.8497e-05 deg
peri 157.5234148540907 6.9708e-05 deg
M 284.5041990601359 1.4155e-05 deg
tp 2459262.270116020766
(2021-Feb-16.77011602)
4.9722e-05 TDB
period 1248.244810894053
3.42
7.9843e-06
2.186e-08
d
yr
n .2884049642010134 1.8448e-09 deg/d
Q 2.686121049817029 1.1454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      598  
   data-arc span      17031 days (46.63 yr)  
   first obs. used      1973-09-29  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56369  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:19:49  

Additional Information
 Earth MOID = .836425 au 
 Jupiter MOID = 2.52569 au 
 T_jup = 3.589 
[ show covariance matrix ]

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 16.4   n/a MPO417610  
diameter diameter 3.077 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117291 (2004 TK287)          Discovered 2004-Oct-09 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 TK287 = 1999 BF29 = 4296 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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