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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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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 
[ 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 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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