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102582 (1999 UD46)
Classification: Main-belt Asteroid          SPK-ID: 2102582
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2219514608487449 3.2236e-08  
a 2.343625951420938 9.0733e-09 au
q 1.823454747820031 7.4979e-08 au
i 10.08181159049162 3.264e-06 deg
node 237.2149111958366 2.2545e-05 deg
peri 40.01972798698507 2.466e-05 deg
M 55.33134494457811 8.2492e-06 deg
tp 2458999.081387257361
(2020-May-29.58138726)
3.0339e-05 TDB
period 1310.481439769434
3.59
7.6102e-06
2.084e-08
d
yr
n .2747082019439653 1.5953e-09 deg/d
Q 2.863797155021845 1.1087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1075  
   data-arc span      8330 days (22.81 yr)  
   first obs. used      1998-03-31  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49019  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:42:39  

Additional Information
 Earth MOID = .818229 au 
 Jupiter MOID = 2.27614 au 
 T_jup = 3.509 
[ 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 15.48   n/a E2021B55  
diameter diameter 4.110 km 1.295 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.082   0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

102582 (1999 UD46)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 UD46 = 1998 FU104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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