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115581 (2003 UD91)
Classification: Main-belt Asteroid          SPK-ID: 2115581
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335723991366651 3.7383e-08  
a 2.348209133205771 1.2629e-08 au
q 2.034553205608848 9.2996e-08 au
i 6.458314345564357 3.7287e-06 deg
node 111.0337516091577 3.7506e-05 deg
peri 200.8143199501904 4.0703e-05 deg
M 340.1773013819399 1.5758e-05 deg
tp 2459272.870881663013
(2021-Feb-27.37088166)
5.7572e-05 TDB
period 1314.327473805593
3.60
1.0603e-05
2.903e-08
d
yr
n .2739043405656215 2.2097e-09 deg/d
Q 2.661865060802695 1.4316e-08 au
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      7694 days (21.07 yr)  
   first obs. used      1999-08-13  
   last obs. used      2020-09-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:44:13  

Additional Information
 Earth MOID = 1.01951 au 
 Jupiter MOID = 2.57585 au 
 T_jup = 3.539 
[ 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 16.09   n/a E2021B55  
diameter diameter 1.451 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.366   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115581 (2003 UD91)          Discovered 2003-Oct-20 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2003 UD91 = 2002 GD158 = 2002 GS86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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