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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1960737976625467 5.6317e-08  
a 3.126930856989612 3.5765e-08 au
q 2.513821648831458 1.7643e-07 au
i 15.20325607635651 9.5304e-06 deg
node 224.2852337177333 2.4789e-05 deg
peri 246.2927146228601 3.5475e-05 deg
M 57.39724963076397 2.5712e-05 deg
tp 2458878.493657724995
(2020-Jan-29.99365772)
0.00014193 TDB
period 2019.648745623335
5.53
3.4651e-05
9.487e-08
d
yr
n .1782488171669135 3.0582e-09 deg/d
Q 3.740040065147767 4.2778e-08 au
  Orbit Determination Parameters
   # obs. used (total)      175  
   data-arc span      8478 days (23.21 yr)  
   first obs. used      1996-11-09  
   last obs. used      2020-01-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5325  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:42:14  

Additional Information
 Earth MOID = 1.5746 au 
 Jupiter MOID = 1.76657 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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