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(2011 XD1)
Classification: Apollo [NEO]          SPK-ID: 3590183
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4531910365031725 4.9261e-07  
a 1.815150285941894 1.5717e-06 au
q .9925404464468569 7.542e-08 au
i 4.193470471839972 6.4677e-06 deg
node 89.65510273802157 1.4659e-05 deg
peri 27.3763898931983 2.8451e-05 deg
M 153.7643895140491 0.0016069 deg
tp 2458618.977129457816
(2019-May-15.47712946)
0.0034915 TDB
period 893.2382447539137
2.45
0.0011602
3.176e-06
d
yr
n .4030279739076551 5.2347e-07 deg/d
Q 2.63776012543693 2.284e-06 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      87 days  
   first obs. used      2011-12-01  
   last obs. used      2012-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .37359  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:51:46  

Additional Information
 Earth MOID = .0250753 au 
 Jupiter MOID = 2.48239 au 
 T_jup = 3.917 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455907.5 (2011-Dec-12.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4541810724372228 4.9867e-07  
q .9925196850206628 7.6924e-08 au
tp 2455940.609828019819
(2012-Jan-14.10982802)
2.1664e-05 TDB
node 89.73838576731544 1.4569e-05 deg
peri 27.1276077664017 2.8573e-05 deg
i 4.204921657563863 6.4603e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      161  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      87 days  
   first obs. used      2011-12-01  
   last obs. used      2012-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .37359  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:51:46  

Additional Information
 Jupiter MOID = 2.48239 au 
 T_jup = 3.917 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.48671432359009E-13 -2.115622122913435E-14 1.039340864609228E-12 9.893005974819025E-13 2.843441809480618E-12 1.250807848476946E-12
q -2.115622122913435E-14 5.917274995667546E-15 -1.468160707576783E-12 -2.128353286049808E-13 -1.793470209883446E-12 -1.51639022853268E-13
tp 1.039340864609228E-12 -1.468160707576783E-12 4.693351889414265E-10 5.110945969131045E-11 5.301101036665479E-10 2.019415158959872E-11
node 9.893005974819025E-13 -2.128353286049808E-13 5.110945969131045E-11 2.122592723967649E-10 -1.40621562161269E-10 -8.030648952269274E-13
peri 2.843441809480618E-12 -1.793470209883446E-12 5.301101036665479E-10 -1.40621562161269E-10 8.163908884966642E-10 3.851751715140109E-11
i 1.250807848476946E-12 -1.51639022853268E-13 2.019415158959872E-11 -8.030648952269274E-13 3.851751715140109E-11 4.173531812457782E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 23.9   n/a MPO227508  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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