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2761 Eddington (1981 AE)
Classification: Main-belt Asteroid          SPK-ID: 2002761
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1800991952810287 3.487e-08  
a 3.083824932700606 1.4499e-08 au
q 2.528430543933655 1.0555e-07 au
i 3.169454535224229 4.8202e-06 deg
node 31.27138397618047 6.9164e-05 deg
peri 100.0061821313488 7.0537e-05 deg
M 106.2985215292809 1.3058e-05 deg
tp 2458416.439651455417
(2018-Oct-24.93965146)
7.0676e-05 TDB
period 1978.030573248675
5.42
1.395e-05
3.819e-08
d
yr
n .181999209147078 1.2836e-09 deg/d
Q 3.639219321467558 1.7111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2340  
   data-arc span      16604 days (45.46 yr)  
   first obs. used      1974-11-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46301  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:44:44  

Additional Information
 Earth MOID = 1.54544 au 
 Jupiter MOID = 1.42132 au 
 T_jup = 3.200 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456363.5 (2013-Mar-12.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819517207971296 3.472e-08  
q 2.521099282539037 1.0557e-07 au
tp 2456437.590589440806
(2013-May-25.09058944)
6.8304e-05 TDB
node 31.32524178578841 6.9099e-05 deg
peri 99.39256372989715 7.0449e-05 deg
i 3.172267985389451 4.8234e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2340  
   data-arc span      16604 days (45.46 yr)  
   first obs. used      1974-11-12  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46301  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:44:44  

Additional Information
 Jupiter MOID = 1.42132 au 
 T_jup = 3.200 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.205504970240516E-15 -3.642057457921608E-15 6.154914481445516E-13 -4.050017553119613E-15 1.298960812705611E-13 -2.133030321215701E-16
q -3.642057457921608E-15 1.11457323875252E-14 -1.86697983003503E-12 1.258467306745734E-14 -3.968161722823657E-13 5.696772383560477E-16
tp 6.154914481445516E-13 -1.86697983003503E-12 4.665385869896294E-9 -1.334128094611878E-11 9.527605290926249E-10 2.268966319406306E-14
node -4.050017553119613E-15 1.258467306745734E-14 -1.334128094611878E-11 4.774632369678261E-9 -4.769591981629824E-9 -6.370946598567051E-11
peri 1.298960812705611E-13 -3.968161722823657E-13 9.527605290926249E-10 -4.769591981629824E-9 4.963065766750119E-9 6.362394415434097E-11
i -2.133030321215701E-16 5.696772383560477E-16 2.268966319406306E-14 -6.370946598567051E-11 6.362394415434097E-11 2.326476075515111E-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 12.3   n/a MPO473803  
diameter diameter 15.894 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.101   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2761 Eddington (1981 AE)          Discovered 1981-Jan-01 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1981 AE = 1970 AW = 1974 VZ = 1976 GU4 = 1979 TT1 = 1979 US1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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