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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09935714444756488 4.6003e-08  
a 2.528422948020687 1.4235e-08 au
q 2.277206063949658 1.1496e-07 au
i 5.756889146225976 4.4063e-06 deg
node 177.0992590170819 4.3396e-05 deg
peri 256.4907422708499 4.7701e-05 deg
M 226.3491965456201 2.2107e-05 deg
tp 2459545.682723694270
(2021-Nov-27.18272369)
9.1432e-05 TDB
period 1468.496824988636
4.02
1.2401e-05
3.395e-08
d
yr
n .2451486403471017 2.0703e-09 deg/d
Q 2.779639832091716 1.5649e-08 au
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      10273 days (28.13 yr)  
   first obs. used      1991-04-21  
   last obs. used      2019-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54551  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:31:58  

Additional Information
 Earth MOID = 1.30006 au 
 Jupiter MOID = 2.44944 au 
 T_jup = 3.438 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457085.5 (2015-Mar-04.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012268051556861 4.6242e-08  
q 2.270099085918379 1.1595e-07 au
tp 2456610.665801288129
(2013-Nov-14.16580129)
8.5215e-05 TDB
node 177.2252673326392 4.3402e-05 deg
peri 256.1690298450756 4.7506e-05 deg
i 5.758265017299759 4.4103e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      10273 days (28.13 yr)  
   first obs. used      1991-04-21  
   last obs. used      2019-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54551  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:31:58  

Additional Information
 Jupiter MOID = 2.44944 au 
 T_jup = 3.438 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.138300783333982E-15 -5.330863337215321E-15 -5.661274601137511E-13 -2.443779579467219E-14 -1.689091772862912E-13 -1.878275884642261E-15
q -5.330863337215321E-15 1.344521342496516E-14 1.469684110946738E-12 6.27518465892763E-14 4.458606277589938E-13 5.027465668286837E-15
tp -5.661274601137511E-13 1.469684110946738E-12 7.261675534980293E-9 5.748838717864757E-11 1.666872435177851E-9 2.192406766489472E-12
node -2.443779579467219E-14 6.27518465892763E-14 5.748838717864757E-11 1.883702577939034E-9 -1.859671937498336E-9 6.002254688993176E-11
peri -1.689091772862912E-13 4.458606277589938E-13 1.666872435177851E-9 -1.859671937498336E-9 2.256864088224261E-9 -5.914694394793234E-11
i -1.878275884642261E-15 5.027465668286837E-15 2.192406766489472E-12 6.002254688993176E-11 -5.914694394793234E-11 1.94510784825784E-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 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

[ show close-approach data ]
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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