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129982 Jeffseabrook (1999 UJ45)
Classification: Main-belt Asteroid          SPK-ID: 2129982
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335256220211925 5.2884e-08  
a 2.536736955020809 1.3677e-08 au
q 2.198017575197509 1.3659e-07 au
i 14.38331732858622 4.4745e-06 deg
node 245.2793666226779 2.1883e-05 deg
peri 146.1387695097161 2.8024e-05 deg
M 28.93140535991721 1.9007e-05 deg
tp 2458881.901660100534
(2020-Feb-02.40166010)
7.765e-05 TDB
period 1475.74588350139
4.04
1.1935e-05
3.268e-08
d
yr
n .2439444378769706 1.9729e-09 deg/d
Q 2.875456334844108 1.5503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      625  
   data-arc span      7705 days (21.10 yr)  
   first obs. used      1999-09-13  
   last obs. used      2020-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50479  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:44:50  

Additional Information
 Earth MOID = 1.21943 au 
 Jupiter MOID = 2.54992 au 
 T_jup = 3.392 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO449743  

129982 Jeffseabrook           Discovered 1999 Oct. 31 by the Catalina Sky Survey.
Jeff Seabrook (b. 1976) is part of the altimetry team developing the capability to generate topography and shape models from the OSIRIS-REx Laser Altimeter. Prior to this, he was a graduate student who developed and deployed atmospheric ozone lidars, and part of the MET team on the Phoenix Mars Mission.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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