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287433 (2002 WQ28)
Classification: Main-belt Asteroid          SPK-ID: 2287433
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1960368031656827 5.2206e-08  
a 3.126183863346102 3.0895e-08 au
q 2.513336772667588 1.5696e-07 au
i 15.20504183823405 9.4156e-06 deg
node 224.2831050905291 1.9856e-05 deg
peri 246.2292057369032 3.246e-05 deg
M 92.40965745371589 2.574e-05 deg
tp 2458878.255070048052
(2020-Jan-29.75507005)
0.00014106 TDB
period 2018.925076917913
5.53
2.9929e-05
8.194e-08
d
yr
n .1783127091321166 2.6433e-09 deg/d
Q 3.739030954024615 3.6952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      8950 days (24.50 yr)  
   first obs. used      1996-11-09  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51647  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 05:11:37  

Additional Information
 Earth MOID = 1.57445 au 
 Jupiter MOID = 1.76784 au 
 T_jup = 3.131 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457564.5 (2016-Jun-25.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1967808980510963 5.201e-08  
q 2.510325348142237 1.5625e-07 au
tp 2456861.240053277488
(2014-Jul-22.74005328)
0.00013147 TDB
node 224.3061481378467 1.986e-05 deg
peri 246.5868372747115 3.24e-05 deg
i 15.2057858115831 9.416e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      211  
   data-arc span      8950 days (24.50 yr)  
   first obs. used      1996-11-09  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51647  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 05:11:37  

Additional Information
 Jupiter MOID = 1.76784 au 
 T_jup = 3.131 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.705087953308101E-15 -8.03648947823006E-15 -1.565986421107605E-12 8.477877870204729E-17 -3.68986748261868E-13 3.424289326016256E-16
q -8.03648947823006E-15 2.441347407270132E-14 5.529874080889438E-12 6.420437919330219E-16 1.298340496622607E-12 -4.30821515580272E-16
tp -1.565986421107605E-12 5.529874080889438E-12 1.728499098087821E-8 -1.618998840727568E-11 3.375338960357079E-9 -3.884357458828455E-11
node 8.477877870204729E-17 6.420437919330219E-16 -1.618998840727568E-11 3.944085238741682E-10 -3.830756956648583E-10 -3.447451975862531E-11
peri -3.68986748261868E-13 1.298340496622607E-12 3.375338960357079E-9 -3.830756956648583E-10 1.049788751533984E-9 2.616536913270186E-11
i 3.424289326016256E-16 -4.30821515580272E-16 -3.884357458828455E-11 -3.447451975862531E-11 2.616536913270186E-11 8.866126189489641E-11

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 15.7   n/a MPO455129  

287433 (2002 WQ28)          Discovered 2002-Nov-23 by NEAT at Palomar
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

[ show close-approach data ]
Alternate Designations
 2002 WQ28 = 1996 VA22 = 2004 EP57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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