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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1800991942754814 3.4565e-08  
a 3.083824932998017 1.4457e-08 au
q 2.528430547278434 1.0447e-07 au
i 3.169454484260775 4.7694e-06 deg
node 31.27138463754379 6.8616e-05 deg
peri 100.0061809302841 6.9956e-05 deg
M 106.2985218715871 1.2959e-05 deg
tp 2458416.439649490113
(2018-Oct-24.93964949)
7.0081e-05 TDB
period 1978.030573534823
5.42
1.391e-05
3.808e-08
d
yr
n .1819992091207493 1.2799e-09 deg/d
Q 3.639219318717601 1.7061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2380  
   data-arc span      16654 days (45.60 yr)  
   first obs. used      1974-11-12  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:49:26  

Additional Information
 Earth MOID = 1.54544 au 
 Jupiter MOID = 1.42132 au 
 T_jup = 3.200 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456391.5 (2013-Apr-09.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1818617178410965 3.4426e-08  
q 2.521098725883651 1.045e-07 au
tp 2456437.606890523209
(2013-May-25.10689052)
6.7554e-05 TDB
node 31.32181564622875 6.8555e-05 deg
peri 99.39971860316709 6.9875e-05 deg
i 3.172245332318613 4.7726e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2380  
   data-arc span      16654 days (45.60 yr)  
   first obs. used      1974-11-12  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:49:26  

Additional Information
 Jupiter MOID = 1.42132 au 
 T_jup = 3.200 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.185127784370503E-15 -3.574399032557887E-15 5.685280712271403E-13 -4.123634372051398E-15 1.188890336040719E-13 -1.939542996231183E-16
q -3.574399032557887E-15 1.092108005657156E-14 -1.713546752354086E-12 1.256822856966505E-14 -3.60454088039313E-13 5.39239465683389E-16
tp 5.685280712271403E-13 -1.713546752354086E-12 4.563537986623442E-9 -1.257921692905649E-11 9.278238493474159E-10 -2.215582523218172E-14
node -4.123634372051398E-15 1.256822856966505E-14 -1.257921692905649E-11 4.699852015327369E-9 -4.694768431445135E-9 -5.768037425482533E-11
peri 1.188890336040719E-13 -3.60454088039313E-13 9.278238493474159E-10 -4.694768431445135E-9 4.88246172437488E-9 5.759573316916592E-11
i -1.939542996231183E-16 5.39239465683389E-16 -2.215582523218172E-14 -5.768037425482533E-11 5.759573316916592E-11 2.277759329298221E-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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