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129611 (1998 AE2)
Classification: Main-belt Asteroid          SPK-ID: 2129611
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .188174107838398 3.8192e-08  
a 2.397782151839691 1.4435e-08 au
q 1.946581634626423 9.2294e-08 au
i 1.706418511999479 4.4227e-06 deg
node 294.3600812243876 0.00015675 deg
peri 3.447965005842135 0.00015725 deg
M 180.9772099222963 1.2229e-05 deg
tp 2459674.901973006997
(2022-Apr-05.40197301)
4.7455e-05 TDB
period 1356.166498003633
3.71
1.2246e-05
3.353e-08
d
yr
n .2654541315759856 2.3971e-09 deg/d
Q 2.848982669052959 1.7151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      8058 days (22.06 yr)  
   first obs. used      1998-01-01  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5764  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:05:11  

Additional Information
 Earth MOID = .930769 au 
 Jupiter MOID = 2.35957 au 
 T_jup = 3.503 
[ 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 16.2   n/a MPO453774  
diameter diameter 1.829 km 0.487 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.210   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129611 (1998 AE2)          Discovered 1998-Jan-01 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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