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215549 (2002 XQ85)
Classification: Main-belt Asteroid          SPK-ID: 2215549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1843018661832165 4.0434e-08  
a 2.551038467433772 1.286e-08 au
q 2.080877317180555 1.0491e-07 au
i 6.01477430631579 6.9039e-06 deg
node 29.07957060954478 3.064e-05 deg
peri 66.46237457228703 3.7419e-05 deg
M 94.34779071017512 2.0649e-05 deg
tp 2458610.465366574713
(2019-May-06.96536657)
8.3946e-05 TDB
period 1488.243306771572
4.07
1.1253e-05
3.081e-08
d
yr
n .2418959308346856 1.8291e-09 deg/d
Q 3.021199617686989 1.523e-08 au
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      17016 days (46.59 yr)  
   first obs. used      1973-09-24  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51415  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:19:39  

Additional Information
 Earth MOID = 1.10613 au 
 Jupiter MOID = 2.1897 au 
 T_jup = 3.409 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457403.5 (2016-Jan-16.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1843762911688865 4.0103e-08  
q 2.081722264845729 1.0399e-07 au
tp 2457123.368186241646
(2015-Apr-10.86818624)
7.9599e-05 TDB
node 29.08892991547819 3.0642e-05 deg
peri 66.84000246746962 3.7439e-05 deg
i 6.014278454317973 6.9022e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      17016 days (46.59 yr)  
   first obs. used      1973-09-24  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51415  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 09:19:39  

Additional Information
 Jupiter MOID = 2.1897 au 
 T_jup = 3.409 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.608265844336822E-15 -4.149713477311463E-15 -2.125137852955515E-12 2.245924619383848E-14 -5.75900223444753E-13 -1.910846423946484E-15
q -4.149713477311463E-15 1.081430637721929E-14 5.698660852535837E-12 -5.997262780771225E-14 1.54709723887269E-12 4.911634393511175E-15
tp -2.125137852955515E-12 5.698660852535837E-12 6.335981644868042E-9 -5.259934298780891E-11 1.717949760362151E-9 6.243550332000475E-12
node 2.245924619383848E-14 -5.997262780771225E-14 -5.259934298780891E-11 9.389480563556093E-10 -9.471341994535313E-10 3.539288970319762E-11
peri -5.75900223444753E-13 1.54709723887269E-12 1.717949760362151E-9 -9.471341994535313E-10 1.401676232269399E-9 -3.35787141821547E-11
i -1.910846423946484E-15 4.911634393511175E-15 6.243550332000475E-12 3.539288970319762E-11 -3.35787141821547E-11 4.763993377409662E-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 15.8   n/a MPO321053  

215549 (2002 XQ85)          Discovered 2002-Dec-11 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

Alternate Designations
 2002 XQ85 = 4036 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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