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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457591.5 (2016-Jul-22.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2453807421889519 4.956e-08  
q 2.362108776034119 1.4909e-07 au
tp 2456690.981506555572
(2014-Feb-02.48150656)
6.4843e-05 TDB
node 172.0094839920932 2.2633e-05 deg
peri 7.885198461437014 2.613e-05 deg
i 16.01820173984128 4.6966e-06 deg
  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
 Jupiter MOID = 1.06025 au 
 T_jup = 3.107 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.456236355355159E-15 -7.350263394131963E-15 6.327170941278797E-13 1.459140964517515E-14 4.329941120296797E-14 -6.48473419923042E-15
q -7.350263394131963E-15 2.222833559097281E-14 -1.682596031071072E-12 -3.191752089581069E-14 -7.187913918677024E-14 1.774344559164883E-14
tp 6.327170941278797E-13 -1.682596031071072E-12 4.20462449488178E-9 -1.45471836286886E-11 9.03712277850605E-10 -1.428938881887655E-11
node 1.459140964517515E-14 -3.191752089581069E-14 -1.45471836286886E-11 5.122410064171868E-10 -4.934504420605062E-10 8.760667377444869E-12
peri 4.329941120296797E-14 -7.187913918677024E-14 9.03712277850605E-10 -4.934504420605062E-10 6.827720218768453E-10 -1.165893313958995E-11
i -6.48473419923042E-15 1.774344559164883E-14 -1.428938881887655E-11 8.760667377444869E-12 -1.165893313958995E-11 2.205790120209574E-11

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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