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115498 (2003 UN26)
Classification: Main-belt Asteroid          SPK-ID: 2115498
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1296143550019533 3.8225e-08  
a 2.38678121047426 1.1097e-08 au
q 2.077420103347858 9.1365e-08 au
i 5.754473227715826 3.7692e-06 deg
node 78.355714836331 4.2011e-05 deg
peri 262.8354825260532 4.4939e-05 deg
M 269.3858197760983 1.8486e-05 deg
tp 2459539.508827734886
(2021-Nov-21.00882773)
7.0284e-05 TDB
period 1346.844143852523
3.69
9.3927e-06
2.572e-08
d
yr
n .2672915063284556 1.8641e-09 deg/d
Q 2.696142317600663 1.2535e-08 au
  Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      7617 days (20.85 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55676  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:43:51  

Additional Information
 Earth MOID = 1.07659 au 
 Jupiter MOID = 2.67294 au 
 T_jup = 3.516 
[ 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 15.79   n/a E2021B55  
diameter diameter 1.939 km 0.453 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.156   0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115498 (2003 UN26)          Discovered 2003-Oct-25 by Tucker, R. A. at Goodricke-Pigott
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2003 UN26 = 2002 GE160 = 2002 JM20 = 2003 QL112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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