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43139 (1999 XM90)
Classification: Main-belt Asteroid          SPK-ID: 2043139
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07389344665629177 2.5562e-08  
a 3.197817993631902 2.0223e-08 au
q 2.961520200302933 8.6055e-08 au
i 14.86062349438966 4.2196e-07 deg
node 283.8891769366533 4.3449e-06 deg
peri 122.7350891185589 1.9835e-05 deg
M 292.270364828744 1.6134e-05 deg
tp 2459593.466270558148
(2022-Jan-13.96627056)
9.4234e-05 TDB
period 2088.714298301301
5.72
1.9814e-05
5.425e-08
d
yr
n .1723548310521831 1.635e-09 deg/d
Q 3.43411578696087 2.1718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1599  
   data-arc span      12092 days (33.11 yr)  
   first obs. used      1987-11-14  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4755  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:16:20  

Additional Information
 Earth MOID = 2.00263 au 
 Jupiter MOID = 1.87528 au 
 T_jup = 3.138 
[ 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 12.93   n/a MPCxxxxx  
diameter diameter 17.568 km 4.265 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.043   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

43139 (1999 XM90)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XM90 = 1987 VM = 1989 CZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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