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43171 (1999 XF172)
Classification: Main-belt Asteroid          SPK-ID: 2043171
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1718655927003024 3.4122e-08  
a 3.128453296118031 1.7782e-08 au
q 2.590779816145492 1.0903e-07 au
i 8.944261974564672 3.4183e-06 deg
node 77.95298746595773 2.526e-05 deg
peri 88.3066509983685 2.712e-05 deg
M 234.0513095639137 1.1941e-05 deg
tp 2459907.605306075897
(2022-Nov-24.10530608)
7.0404e-05 TDB
period 2021.123914079126
5.53
1.7232e-05
4.718e-08
d
yr
n .1781187177551283 1.5186e-09 deg/d
Q 3.666126776090571 2.0838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1681  
   data-arc span      8180 days (22.40 yr)  
   first obs. used      1998-09-20  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50014  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:16:53  

Additional Information
 Earth MOID = 1.6171 au 
 Jupiter MOID = 1.4245 au 
 T_jup = 3.172 
[ show covariance matrix ]

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 13.50   n/a E2021B10  

43171 (1999 XF172)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

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