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27266 (1999 YH)
Classification: Inner Main-belt Asteroid          SPK-ID: 2027266
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08134736070807998 3.1598e-08  
a 1.919485460916634 6.1763e-09 au
q 1.763340384753533 6.1892e-08 au
i 23.9174000780127 4.9928e-06 deg
node 116.0635121690391 9.6077e-06 deg
peri 67.55942424059204 3.4391e-05 deg
M 150.5847180458979 3.1797e-05 deg
tp 2458594.193222639114
(2019-Apr-20.69322264)
8.5759e-05 TDB
period 971.349827180577
2.66
4.6883e-06
1.284e-08
d
yr
n .3706182777063231 1.7888e-09 deg/d
Q 2.075630537079734 6.6788e-09 au
  Orbit Determination Parameters
   # obs. used (total)      960  
   data-arc span      25192 days (68.97 yr)  
   first obs. used      1950-05-21  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47436  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:27:29  

Additional Information
 Earth MOID = .84249 au 
 Jupiter MOID = 3.04959 au 
 T_jup = 3.818 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456794.5 (2014-May-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08094354371711146 3.1591e-08  
q 1.764242561840401 6.183e-08 au
tp 2456651.039854251305
(2013-Dec-24.53985425)
8.6631e-05 TDB
node 116.0917313080565 9.6085e-06 deg
peri 67.49113306181503 3.4563e-05 deg
i 23.91581745010508 4.9928e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      960  
   data-arc span      25192 days (68.97 yr)  
   first obs. used      1950-05-21  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47436  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:27:29  

Additional Information
 Jupiter MOID = 3.04959 au 
 T_jup = 3.818 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.980218575968534E-16 -1.945377400355054E-15 4.796228279090287E-13 5.139927537304174E-15 1.7355800228944E-13 -7.719736685108099E-15
q -1.945377400355054E-15 3.822896232225815E-15 -9.666728540372668E-13 -1.034154233470161E-14 -3.488953411701767E-13 1.558431750742611E-14
tp 4.796228279090287E-13 -9.666728540372668E-13 7.504889596899229E-9 -1.920951769230223E-12 2.885460920529057E-9 -2.831654868349871E-12
node 5.139927537304174E-15 -1.034154233470161E-14 -1.920951769230223E-12 9.232355685781872E-11 -8.473696770286678E-11 -1.665627838187911E-11
peri 1.7355800228944E-13 -3.488953411701767E-13 2.885460920529057E-9 -8.473696770286678E-11 1.194621387363464E-9 1.403911640491403E-11
i -7.719736685108099E-15 1.558431750742611E-14 -2.831654868349871E-12 -1.665627838187911E-11 1.403911640491403E-11 2.492757985085768E-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 15.5   n/a MPO474123  

27266 (1999 YH)          Discovered 1999-Dec-16 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 YH = 1998 KF56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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