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JPL Small-Body Database Browser
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65008 (2002 AL81)
Classification: Main-belt Asteroid          SPK-ID: 2065008
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09935711121962332 4.6029e-08  
a 2.52842294011154 1.4262e-08 au
q 2.27720614084063 1.1505e-07 au
i 5.756887145992881 4.4181e-06 deg
node 177.0992403568804 4.3474e-05 deg
peri 256.490759095228 4.7804e-05 deg
M 226.3492014668227 2.221e-05 deg
tp 2459545.682701061833
(2021-Nov-27.18270106)
9.1864e-05 TDB
period 1468.496818098241
4.02
1.2425e-05
3.402e-08
d
yr
n .245148641497374 2.0743e-09 deg/d
Q 2.779639739382449 1.5679e-08 au
  Orbit Determination Parameters
   # obs. used (total)      789  
   data-arc span      10247 days (28.05 yr)  
   first obs. used      1991-04-21  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54778  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:25:44  

Additional Information
 Earth MOID = 1.30006 au 
 Jupiter MOID = 2.44944 au 
 T_jup = 3.438 
[ 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 15.2   n/a MPO436235  
diameter diameter 2.556 km 0.813 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.129   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65008 (2002 AL81)          Discovered 2002-Jan-09 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2002 AL81 = 1999 KO7 = 2000 QR152 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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