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102891 (1999 XK6)
Classification: Main-belt Asteroid          SPK-ID: 2102891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1940245425947486 3.7871e-08  
a 2.376223063198889 9.8785e-09 au
q 1.915177470258633 9.2173e-08 au
i 3.30370435050508 3.7926e-06 deg
node 59.6725960468364 8.8535e-05 deg
peri 335.1266366292075 8.9491e-05 deg
M 291.8400457693247 1.3728e-05 deg
tp 2459453.812153111999
(2021-Aug-27.31215311)
5.1774e-05 TDB
period 1337.917200057019
3.66
8.3431e-06
2.284e-08
d
yr
n .26907494722742 1.6779e-09 deg/d
Q 2.837268656139146 1.1795e-08 au
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      7099 days (19.44 yr)  
   first obs. used      1999-11-03  
   last obs. used      2019-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51871  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:06  

Additional Information
 Earth MOID = .921436 au 
 Jupiter MOID = 2.59177 au 
 T_jup = 3.513 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936020567633275 3.7559e-08  
q 1.915190700222604 9.1218e-08 au
tp 2456780.832953953888
(2014-May-03.33295395)
4.6647e-05 TDB
node 59.76425285710521 8.8434e-05 deg
peri 335.360795256317 8.9403e-05 deg
i 3.30601361605153 3.7944e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      7099 days (19.44 yr)  
   first obs. used      1999-11-03  
   last obs. used      2019-04-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51871  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:06  

Additional Information
 Jupiter MOID = 2.59177 au 
 T_jup = 3.513 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.410708515347456E-15 -3.413902502292705E-15 -6.624182990820518E-13 -1.326088116785992E-14 -1.887593227646472E-13 -1.279848012673472E-15
q -3.413902502292705E-15 8.320741624011694E-15 1.628597775221846E-12 3.31281044617382E-14 4.621724029976411E-13 3.151460828814629E-15
tp -6.624182990820518E-13 1.628597775221846E-12 2.175969034831734E-9 1.64481668889639E-11 6.412555886856415E-10 1.367088436377452E-12
node -1.326088116785992E-14 3.31281044617382E-14 1.64481668889639E-11 7.820655166714696E-9 -7.802500283290472E-9 -4.037261095948855E-11
peri -1.887593227646472E-13 4.621724029976411E-13 6.412555886856415E-10 -7.802500283290472E-9 7.992872581352758E-9 4.073859876619083E-11
i -1.279848012673472E-15 3.151460828814629E-15 1.367088436377452E-12 -4.037261095948855E-11 4.073859876619083E-11 1.439746749072695E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO338001  

102891 (1999 XK6)          Discovered 1999-Dec-04 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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