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(2004 EU20)
Classification: Mars-crossing Asteroid          SPK-ID: 3177246
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5391850266998647 4.4644e-08  
a 3.190746583548729 2.8443e-08 au
q 1.470343801705505 1.3251e-07 au
i 29.30699035045086 1.0565e-05 deg
node 22.21329079970301 1.1495e-05 deg
peri 74.90399417935032 3.0289e-05 deg
M 8.589816892134806 1.0681e-05 deg
tp 2459150.827238864447
(2020-Oct-28.32723886)
6.1834e-05 TDB
period 2081.789895332086
5.70
2.7836e-05
7.621e-08
d
yr
n .1729281138347407 2.3122e-09 deg/d
Q 4.911149365391952 4.3778e-08 au
  Orbit Determination Parameters
   # obs. used (total)      491  
   data-arc span      8485 days (23.23 yr)  
   first obs. used      1998-01-23  
   last obs. used      2021-04-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4213  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:54:19  

Additional Information
 Earth MOID = .703441 au 
 Jupiter MOID = 2.04317 au 
 T_jup = 2.781 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.54   n/a E2021-HE6  
diameter diameter 1.317 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.280   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

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