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79861 (1998 XX87)
Classification: Main-belt Asteroid          SPK-ID: 2079861
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172197350125136 2.5589e-08  
a 2.582099288230995 9.4978e-09 au
q 2.021216365065459 6.3766e-08 au
i 3.516669337425648 3.8357e-06 deg
node 189.3743771072917 5.1195e-05 deg
peri 241.4144440910132 5.2307e-05 deg
M 165.4625183387935 1.1748e-05 deg
tp 2458699.945723280576
(2019-Aug-04.44572328)
4.7197e-05 TDB
period 1515.506606188289
4.15
8.3618e-06
2.289e-08
d
yr
n .2375443290910162 1.3107e-09 deg/d
Q 3.142982211396532 1.1561e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1126  
   data-arc span      8234 days (22.54 yr)  
   first obs. used      1998-12-15  
   last obs. used      2021-07-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52389  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:02:45  

Additional Information
 Earth MOID = 1.03818 au 
 Jupiter MOID = 2.16659 au 
 T_jup = 3.388 
[ 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 15.44   n/a MPO614063  

79861 (1998 XX87)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 XX87 = 2002 RH106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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