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70988 (1999 XU29)
Classification: Main-belt Asteroid          SPK-ID: 2070988
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0784445325276354 3.5584e-08  
a 2.784281595228968 1.5997e-08 au
q 2.565869927065933 9.5632e-08 au
i 14.28646470900892 4.1328e-06 deg
node 97.02594162867767 1.8097e-05 deg
peri 57.43244812633147 3.6816e-05 deg
M 74.01568488356291 3.1112e-05 deg
tp 2458651.609275860851
(2019-Jun-17.10927586)
0.00014626 TDB
period 1696.946544339639
4.65
1.4625e-05
4.004e-08
d
yr
n .2121457515564185 1.8283e-09 deg/d
Q 3.002693263392004 1.7252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1080  
   data-arc span      7530 days (20.62 yr)  
   first obs. used      1999-11-04  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:37:35  

Additional Information
 Earth MOID = 1.60777 au 
 Jupiter MOID = 2.13401 au 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO468651  
diameter diameter 3.092 km 0.247 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.464   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70988 (1999 XU29)          Discovered 1999-Dec-06 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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