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305241 (2007 XO31)
Classification: Main-belt Asteroid          SPK-ID: 2305241
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09577717362188047 6.0527e-08  
a 2.650612361921647 3.2345e-08 au
q 2.396744201529574 1.7282e-07 au
i 1.671930061364268 7.2914e-06 deg
node 197.1422296898874 0.00029865 deg
peri 232.4191053126306 0.00030387 deg
M 323.1575410559485 5.9304e-05 deg
tp 2459161.810955240673
(2020-Nov-08.31095524)
0.00026125 TDB
period 1576.223345320934
4.32
2.8852e-05
7.899e-08
d
yr
n .2283940287197691 4.1806e-09 deg/d
Q 2.904480522313719 3.5443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      7148 days (19.57 yr)  
   first obs. used      2000-02-07  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56825  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:28  

Additional Information
 Earth MOID = 1.41139 au 
 Jupiter MOID = 2.32517 au 
 T_jup = 3.383 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457284.5 (2015-Sep-19.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09507979511451296 5.9778e-08  
q 2.399768542055723 1.7133e-07 au
tp 2457577.616890358922
(2016-Jul-08.11689036)
0.00024967 TDB
node 197.173071184313 0.00029829 deg
peri 230.8767425714602 0.00030366 deg
i 1.670844296723592 7.3073e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      147  
   data-arc span      7148 days (19.57 yr)  
   first obs. used      2000-02-07  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56825  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:28  

Additional Information
 Jupiter MOID = 2.32517 au 
 T_jup = 3.383 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.573390661564232E-15 -1.010632950771373E-14 8.864733787892284E-13 1.319346114394635E-14 3.314309630841427E-13 -5.599776477196114E-16
q -1.010632950771373E-14 2.93529910075199E-14 1.168928484506052E-12 -3.025404603180528E-14 -1.338621472990773E-13 1.94346677890493E-15
tp 8.864733787892284E-13 1.168928484506052E-12 6.23333144224399E-8 6.038795630214706E-11 1.428960280473408E-8 4.00946179802521E-12
node 1.319346114394635E-14 -3.025404603180528E-14 6.038795630214706E-11 8.897612860249726E-8 -8.892334680360143E-8 -9.905370353482233E-10
peri 3.314309630841427E-13 -1.338621472990773E-13 1.428960280473408E-8 -8.892334680360143E-8 9.220727853503314E-8 9.910043209075112E-10
i -5.599776477196114E-16 1.94346677890493E-15 4.00946179802521E-12 -9.905370353482233E-10 9.910043209075112E-10 5.339688121676243E-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 17.0   n/a MPO494622  

305241 (2007 XO31)          Discovered 2007-Dec-15 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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