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173955 (2001 XU11)
Classification: Main-belt Asteroid          SPK-ID: 2173955
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1924801668430964 6.7578e-08  
a 3.149548372908113 4.2354e-08 au
q 2.543322776610356 2.1312e-07 au
i 16.39717045855738 7.6293e-06 deg
node 284.9711975004872 3.6166e-05 deg
peri 162.3569252576799 4.7511e-05 deg
M 132.4833031704992 3.2308e-05 deg
tp 2458449.172131353292
(2018-Nov-26.67213135)
0.00017378 TDB
period 2041.600913020137
5.59
4.1182e-05
1.128e-07
d
yr
n .1763322095440546 3.5569e-09 deg/d
Q 3.755773969205869 5.0506e-08 au
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      6763 days (18.52 yr)  
   first obs. used      2001-11-11  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:15:41  

Additional Information
 Earth MOID = 1.56428 au 
 Jupiter MOID = 1.47032 au 
 T_jup = 3.117 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457235.5 (2015-Aug-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1934739317040674 6.7505e-08  
q 2.540103913402317 2.1286e-07 au
tp 2456408.463084051270
(2013-Apr-25.96308405)
0.00015224 TDB
node 284.9888209439467 3.6156e-05 deg
peri 162.6859060798272 4.7397e-05 deg
i 16.40125661762192 7.631e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      6763 days (18.52 yr)  
   first obs. used      2001-11-11  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:15:41  

Additional Information
 Jupiter MOID = 1.47032 au 
 T_jup = 3.117 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.556916653356758E-15 -1.418563145016268E-14 -1.587097032412395E-12 -2.012859672008585E-14 -2.774631050739692E-13 -6.019787202940622E-15
q -1.418563145016268E-14 4.531085713628875E-14 7.075663303222891E-12 6.12308491297589E-14 1.37012137528045E-12 2.16056324763863E-14
tp -1.587097032412395E-12 7.075663303222891E-12 2.317607172528122E-8 -2.886027467997666E-11 4.820460321517316E-9 1.819770969812162E-11
node -2.012859672008585E-14 6.12308491297589E-14 -2.886027467997666E-11 1.307287269505442E-9 -1.258668001813689E-9 -7.59578652488054E-12
peri -2.774631050739692E-13 1.37012137528045E-12 4.820460321517316E-9 -1.258668001813689E-9 2.246473288687431E-9 1.113696549278247E-11
i -6.019787202940622E-15 2.16056324763863E-14 1.819770969812162E-11 -7.59578652488054E-12 1.113696549278247E-11 5.823292409376527E-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 15.29   n/a E2021B55  

173955 (2001 XU11)          Discovered 2001-Dec-09 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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