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150110 (1981 EA30)
Classification: Main-belt Asteroid          SPK-ID: 2150110
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2453903897917364 4.9629e-08  
a 3.133011824355742 2.1807e-08 au
q 2.364200831554967 1.492e-07 au
i 16.0211867280061 4.6958e-06 deg
node 171.9133245064888 2.262e-05 deg
peri 8.436502996861075 2.612e-05 deg
M 86.14146171921118 1.3545e-05 deg
tp 2458715.824335946057
(2019-Aug-20.32433595)
7.3498e-05 TDB
period 2025.543049503494
5.55
2.1148e-05
5.79e-08
d
yr
n .177730115431634 1.8556e-09 deg/d
Q 3.901822817156517 2.7159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      14425 days (39.49 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61964  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:09  

Additional Information
 Earth MOID = 1.36887 au 
 Jupiter MOID = 1.06025 au 
 T_jup = 3.107 
[ 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 15.53   n/a E2021B55  
diameter diameter 6.356 km 1.773 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.021   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

150110 (1981 EA30)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

[ show close-approach data ]
Alternate Designations
 1981 EA30 = 2003 EV56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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