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215458 (2002 PJ178)
Classification: Main-belt Asteroid          SPK-ID: 2215458
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0958633288345583 5.1089e-08  
a 2.521282322684377 1.958e-08 au
q 2.279583806300125 1.2819e-07 au
i 4.23862036383187 5.336e-06 deg
node 161.5716327653249 6.4884e-05 deg
peri 290.3693260843519 6.9187e-05 deg
M 40.70079075457463 2.5213e-05 deg
tp 2458835.177870246992
(2019-Dec-17.67787025)
0.00010212 TDB
period 1462.280353960778
4.00
1.7034e-05
4.664e-08
d
yr
n .2461908204024575 2.8679e-09 deg/d
Q 2.762980839068628 2.1457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      320  
   data-arc span      7330 days (20.07 yr)  
   first obs. used      2000-01-05  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52353  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:23:29  

Additional Information
 Earth MOID = 1.30039 au 
 Jupiter MOID = 2.38013 au 
 T_jup = 3.446 
[ 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 15.9   n/a MPO450015  

215458 (2002 PJ178)          Discovered 2002-Aug-15 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2002 PJ178 = 2005 HA2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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