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173952 (2001 XJ7)
Classification: Main-belt Asteroid          SPK-ID: 2173952
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08155410742211959 4.4828e-08  
a 3.111595669875314 2.8589e-08 au
q 2.8578322623601 1.3908e-07 au
i 9.34042598369451 5.1568e-06 deg
node 250.1330017901701 3.2871e-05 deg
peri 186.6842075847853 4.7609e-05 deg
M 134.2987548806185 3.4978e-05 deg
tp 2458252.601520992694
(2018-May-14.10152099)
0.00019164 TDB
period 2004.809744378995
5.49
2.763e-05
7.565e-08
d
yr
n .179568161522236 2.4748e-09 deg/d
Q 3.365359077390527 3.092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      6741 days (18.46 yr)  
   first obs. used      2001-11-09  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5448  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:33:13  

Additional Information
 Earth MOID = 1.87322 au 
 Jupiter MOID = 1.89566 au 
 T_jup = 3.193 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457241.5 (2015-Aug-07.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08251257651245374 4.4762e-08  
q 2.855343075330537 1.3897e-07 au
tp 2456250.384348907939
(2012-Nov-18.88434891)
0.00018389 TDB
node 250.1580492075504 3.2868e-05 deg
peri 187.3905358515894 4.734e-05 deg
i 9.34081483655428 5.1571e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      6741 days (18.46 yr)  
   first obs. used      2001-11-09  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5448  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 03:33:13  

Additional Information
 Jupiter MOID = 1.89566 au 
 T_jup = 3.193 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.003600440952688E-15 -6.109845356780759E-15 -1.031522664084581E-12 2.171241176618616E-16 -1.882024626512938E-13 -6.449234026914853E-17
q -6.109845356780759E-15 1.93122629513832E-14 3.8638410551365E-12 -3.643360303929586E-15 7.721385488931716E-13 6.741441474267451E-16
tp -1.031522664084581E-12 3.8638410551365E-12 3.381388619265321E-8 -1.646414829222531E-12 6.288386570888801E-9 -1.992471802398685E-12
node 2.171241176618616E-16 -3.643360303929586E-15 -1.646414829222531E-12 1.080284155182149E-9 -1.066310034143026E-9 -2.041008567969863E-11
peri -1.882024626512938E-13 7.721385488931716E-13 6.288386570888801E-9 -1.066310034143026E-9 2.2410702836179E-9 1.981457761652485E-11
i -6.449234026914853E-17 6.741441474267451E-16 -1.992471802398685E-12 -2.041008567969863E-11 1.981457761652485E-11 2.659532193540512E-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 15.1   n/a MPO433119  

173952 (2001 XJ7)          Discovered 2001-Dec-07 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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