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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2170923271490938 2.5634e-08  
a 2.582909217305827 9.5258e-09 au
q 2.02217944450606 6.3915e-08 au
i 3.515983807642737 4.448e-06 deg
node 189.37232846002 5.8229e-05 deg
peri 241.5055931216116 5.9677e-05 deg
M 71.31250359932942 1.293e-05 deg
tp 2458700.151599870469
(2019-Aug-04.65159987)
5.3651e-05 TDB
period 1516.219717290195
4.15
8.3878e-06
2.296e-08
d
yr
n .2374326068278522 1.3135e-09 deg/d
Q 3.143638990105592 1.1594e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1067  
   data-arc span      7803 days (21.36 yr)  
   first obs. used      1998-12-15  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5269  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:44:00  

Additional Information
 Earth MOID = 1.03939 au 
 Jupiter MOID = 2.16426 au 
 T_jup = 3.387 
[ 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 15.4   n/a MPO417375  

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

[ show close-approach data ]
Alternate Designations
 1998 XX87 = 2002 RH106 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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