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22046 (1999 XU211)
Classification: Outer Main-belt Asteroid          SPK-ID: 2022046
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06973788123987559 2.1736e-08  
a 3.21863823673994 2.055e-08 au
q 2.994177225632048 6.9016e-08 au
i 16.86871876417699 1.1097e-06 deg
node 340.5854094926616 3.388e-06 deg
peri 243.9526717130832 1.8049e-05 deg
M 124.3102269283164 2.2466e-05 deg
tp 2458472.198784420314
(2018-Dec-19.69878442)
0.0001284 TDB
period 2109.146158665433
5.77
2.02e-05
5.53e-08
d
yr
n .170685183917169 1.6347e-09 deg/d
Q 3.443099247847833 2.1984e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2000  
   data-arc span      8579 days (23.49 yr)  
   first obs. used      1997-08-12  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4308  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:58:26  

Additional Information
 Earth MOID = 2.03183 au 
 Jupiter MOID = 1.65546 au 
 T_jup = 3.118 
[ 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 12.76   n/a E2021B10  
diameter diameter 17.791 km 1.871 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.051   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

22046 (1999 XU211)          Discovered 1999-Dec-13 by LINEAR at Socorro
Reference: 20010208/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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