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115985 (2003 WE61)
Classification: Main-belt Asteroid          SPK-ID: 2115985
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08778844768336978 5.6072e-08  
a 2.394710996227592 1.1927e-08 au
q 2.184483035218475 1.3741e-07 au
i 7.900571564857984 5.7866e-06 deg
node 60.3989907101079 3.5955e-05 deg
peri 183.8231620448518 4.6953e-05 deg
M 33.66896398966251 3.0062e-05 deg
tp 2459073.908267980513
(2020-Aug-12.40826798)
0.0001131 TDB
period 1353.561800743494
3.71
1.0112e-05
2.769e-08
d
yr
n .2659649524700362 1.987e-09 deg/d
Q 2.604938957236708 1.2974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      7583 days (20.76 yr)  
   first obs. used      1999-09-15  
   last obs. used      2020-06-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55694  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:46:04  

Additional Information
 Earth MOID = 1.16995 au 
 Jupiter MOID = 2.39726 au 
 T_jup = 3.512 
[ 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 16.25   n/a E2021B55  

115985 (2003 WE61)          Discovered 2003-Nov-19 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2003 WE61 = 1999 RN192 = 2001 DM4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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