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97281 (1999 XD151)
Classification: Main-belt Asteroid          SPK-ID: 2097281
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1806961514898898 5.055e-08  
a 2.742739399588301 1.8125e-08 au
q 2.247136945543004 1.3996e-07 au
i 11.06052669076425 4.8153e-06 deg
node 78.92802094027175 3.3292e-05 deg
peri 332.8521101550343 3.7339e-05 deg
M 86.14058725660422 1.6864e-05 deg
tp 2458203.509081386913
(2018-Mar-26.00908139)
7.6759e-05 TDB
period 1659.110243525235
4.54
1.6446e-05
4.503e-08
d
yr
n .216983772720902 2.1508e-09 deg/d
Q 3.238341853633598 2.14e-08 au
  Orbit Determination Parameters
   # obs. used (total)      650  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      1999-09-14  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63278  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:33:32  

Additional Information
 Earth MOID = 1.26444 au 
 Jupiter MOID = 2.13075 au 
 T_jup = 3.299 
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Orbital Elements at Epoch 2456831.5 (2014-Jun-23.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1804436212786987 5.0336e-08  
q 2.249506576030698 1.3944e-07 au
tp 2456546.279546705925
(2013-Sep-10.77954671)
7.5291e-05 TDB
node 78.97339784750879 3.3274e-05 deg
peri 333.3572035272481 3.7342e-05 deg
i 11.06140403991755 4.8152e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      650  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      1999-09-14  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63278  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:33:32  

Additional Information
 Jupiter MOID = 2.13075 au 
 T_jup = 3.299 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.533678261489994E-15 -6.978782844070279E-15 -1.171247497971907E-12 8.278545291067007E-15 -3.709302021932057E-13 2.280814851652891E-15
q -6.978782844070279E-15 1.944343409848023E-14 3.193051745974176E-12 -2.210112661052404E-14 1.01966868778951E-12 -5.954703492618779E-15
tp -1.171247497971907E-12 3.193051745974176E-12 5.668791901549387E-9 1.04184610137382E-11 1.323806663694133E-9 -6.449612662062748E-12
node 8.278545291067007E-15 -2.210112661052404E-14 1.04184610137382E-11 1.107126810858424E-9 -1.084239924328504E-9 -2.10113689376768E-11
peri -3.709302021932057E-13 1.01966868778951E-12 1.323806663694133E-9 -1.084239924328504E-9 1.394426001130334E-9 1.906993567863149E-11
i 2.280814851652891E-15 -5.954703492618779E-15 -6.449612662062748E-12 -2.10113689376768E-11 1.906993567863149E-11 2.318602801305205E-11

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 14.9   n/a MPO280420  
diameter diameter 2.908 km 0.766 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.275   0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97281 (1999 XD151)          Discovered 1999-Dec-09 by LONEOS at Anderson Mesa
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

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