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120087 (2003 ET25)
Classification: Main-belt Asteroid          SPK-ID: 2120087
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1935791106700247 5.1522e-08  
a 3.111120262712868 2.8894e-08 au
q 2.508872369069417 1.6993e-07 au
i 18.31037425985273 7.2826e-06 deg
node 5.045780222686806 1.5906e-05 deg
peri 257.6358178542515 2.5367e-05 deg
M 337.5579105330261 1.8091e-05 deg
tp 2459125.449468933906
(2020-Oct-02.94946893)
0.00010063 TDB
period 2004.350302693616
5.49
2.7923e-05
7.645e-08
d
yr
n .1796093225401774 2.5021e-09 deg/d
Q 3.713368156356319 3.4487e-08 au
  Orbit Determination Parameters
   # obs. used (total)      390  
   data-arc span      7548 days (20.67 yr)  
   first obs. used      1999-10-16  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61262  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:59:37  

Additional Information
 Earth MOID = 1.57189 au 
 Jupiter MOID = 1.69321 au 
 T_jup = 3.113 
[ 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 14.93   n/a E2021B55  
diameter diameter 4.361 km 0.316 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.102   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120087 (2003 ET25)          Discovered 2003-Mar-06 by LONEOS at Anderson Mesa
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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