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212927 (2008 AL95)
Classification: Outer Main-belt Asteroid          SPK-ID: 2212927
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09497209927105672 5.0633e-08  
a 3.218497726344098 3.4536e-08 au
q 2.912830240774076 1.6333e-07 au
i .3354724522844275 5.9165e-06 deg
node 23.12831770341043 0.0010325 deg
peri 181.9911035398954 0.0010331 deg
M 341.5667181511926 3.3225e-05 deg
tp 2459108.488721546911
(2020-Sep-15.98872155)
0.00019423 TDB
period 2109.008047278518
5.77
3.3946e-05
9.294e-08
d
yr
n .1706963614788228 2.7475e-09 deg/d
Q 3.52416521191412 3.7816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      297  
   data-arc span      7079 days (19.38 yr)  
   first obs. used      2000-11-30  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:18  

Additional Information
 Earth MOID = 1.90875 au 
 Jupiter MOID = 1.43678 au 
 T_jup = 3.183 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457134.5 (2015-Apr-22.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09537623530289467 5.096e-08  
q 2.911297886860001 1.6423e-07 au
tp 2456992.905007395374
(2014-Dec-01.40500740)
0.00020273 TDB
node 23.14155347587258 0.0010303 deg
peri 181.1098973530766 0.0010308 deg
i .3361752520901407 5.9176e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      297  
   data-arc span      7079 days (19.38 yr)  
   first obs. used      2000-11-30  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:18  

Additional Information
 Jupiter MOID = 1.43678 au 
 T_jup = 3.183 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.596874632725165E-15 -8.220361629476439E-15 -3.797632151428123E-12 -8.915370239631546E-14 -5.654852897856994E-13 1.688778625592131E-16
q -8.220361629476439E-15 2.697235308279026E-14 9.828109252658199E-12 3.407403298916963E-13 1.349761497633337E-12 -6.100526843277804E-16
tp -3.797632151428123E-12 9.828109252658199E-12 4.1099058593594E-8 2.304902455137431E-10 7.073229091708893E-9 -6.487355734458214E-13
node -8.915370239631546E-14 3.407403298916963E-13 2.304902455137431E-10 1.061416554075049E-6 -1.061353057834012E-6 -2.344767082994425E-9
peri -5.654852897856994E-13 1.349761497633337E-12 7.073229091708893E-9 -1.061353057834012E-6 1.062603197770924E-6 2.344608214119035E-9
i 1.688778625592131E-16 -6.100526843277804E-16 -6.487355734458214E-13 -2.344767082994425E-9 2.344608214119035E-9 3.501824906280323E-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 15.7   n/a MPO422828  

212927 (2008 AL95)          Discovered 2008-Jan-14 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2008 AL95 = 2006 UR201 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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