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243657 (1999 UX45)
Classification: Main-belt Asteroid          SPK-ID: 2243657
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3083024898513912 5.7275e-08  
a 2.418381906287553 1.8163e-08 au
q 1.672788743167546 1.3536e-07 au
i 10.88847333973681 6.1575e-06 deg
node 1.488320931556684 2.557e-05 deg
peri 315.6627523819349 2.7728e-05 deg
M 217.7143218331683 1.6875e-05 deg
tp 2459543.430752633929
(2021-Nov-24.93075263)
6.892e-05 TDB
period 1373.680566213001
3.76
1.5475e-05
4.237e-08
d
yr
n .2620696607745259 2.9523e-09 deg/d
Q 3.163975069407559 2.3763e-08 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      9009 days (24.67 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50392  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:49:44  

Additional Information
 Earth MOID = .680224 au 
 Jupiter MOID = 2.23021 au 
 T_jup = 3.425 
[ 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 16.2   n/a MPO470598  
diameter diameter 3.596 km 0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243657 (1999 UX45)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

Alternate Designations
 1999 UX45 = 1995 RF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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