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181665 (2008 AG32)
Classification: Jupiter Trojan          SPK-ID: 2181665
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08429682562771841 7.6226e-08  
a 5.133531469324856 1.3949e-07 au
q 4.700791062200773 4.6463e-07 au
i 19.80879512581445 5.7593e-06 deg
node 102.1206083728228 1.5978e-05 deg
peri 173.5247716449931 3.6666e-05 deg
M 346.7988340500536 3.2873e-05 deg
tp 2459356.287482639260
(2021-May-21.78748264)
0.00038722 TDB
period 4248.374269574375
11.63
0.00017316
4.741e-07
d
yr
n .08473829685350834 3.4538e-09 deg/d
Q 5.566271876448938 1.5125e-07 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      8473 days (23.20 yr)  
   first obs. used      1997-06-27  
   last obs. used      2020-09-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47996  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:32  

Additional Information
 Earth MOID = 3.68316 au 
 Jupiter MOID = .363049 au 
 T_jup = 2.876 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.71   n/a E2021B55  
diameter diameter 15.113 km 0.649 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.071   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

181665 (2008 AG32)          Discovered 2008-Jan-12 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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