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115797 (2003 UA228)
Classification: Main-belt Asteroid          SPK-ID: 2115797
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1816509318324626 6.6994e-08  
a 2.851633570639503 1.9101e-08 au
q 2.333631675288105 1.8074e-07 au
i 8.330617996187401 6.2344e-06 deg
node 17.83569015603393 2.2858e-05 deg
peri 162.8621986617361 2.5812e-05 deg
M 78.21948810462811 1.2588e-05 deg
tp 2458818.334504253654
(2019-Nov-30.83450425)
5.9418e-05 TDB
period 1758.891317271919
4.82
1.7672e-05
4.838e-08
d
yr
n .2046743857706731 2.0564e-09 deg/d
Q 3.369635465990901 2.2571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      10686 days (29.26 yr)  
   first obs. used      1991-04-19  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52179  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:45:12  

Additional Information
 Earth MOID = 1.33727 au 
 Jupiter MOID = 1.58859 au 
 T_jup = 3.265 
[ 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 14.75   n/a E2021B55  
diameter diameter 5.702 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115797 (2003 UA228)          Discovered 2003-Oct-23 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2003 UA228 = 1991 HF5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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