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115558 (2003 UD78)
Classification: Main-belt Asteroid          SPK-ID: 2115558
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02346359376622137 4.7452e-08  
a 3.151423843385663 2.741e-08 au
q 3.077480114539277 1.5285e-07 au
i 12.39055865889231 5.4563e-06 deg
node .5954158830641653 1.9343e-05 deg
peri 235.2845022852617 0.00013427 deg
M 180.1023280980622 0.00013697 deg
tp 2460221.631547942739
(2023-Oct-04.13154794)
0.00078227 TDB
period 2043.424761270779
5.59
2.6659e-05
7.299e-08
d
yr
n .1761748251382257 2.2984e-09 deg/d
Q 3.225367572232047 2.8053e-08 au
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      8534 days (23.36 yr)  
   first obs. used      1997-09-26  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51826  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:44:07  

Additional Information
 Earth MOID = 2.08561 au 
 Jupiter MOID = 1.76555 au 
 T_jup = 3.171 
[ 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 14.82   n/a MPCxxxxx  

115558 (2003 UD78)          Discovered 2003-Oct-17 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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