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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09586332851333161 5.1083e-08  
a 2.521282324115836 1.9443e-08 au
q 2.279583808404264 1.2813e-07 au
i 4.238620141619618 5.3248e-06 deg
node 161.5716309948638 6.4787e-05 deg
peri 290.3693291549258 6.906e-05 deg
M 40.70078883365135 2.4998e-05 deg
tp 2458835.177877908778
(2019-Dec-17.67787791)
0.00010128 TDB
period 1462.280355206094
4.00
1.6914e-05
4.631e-08
d
yr
n .246190820192795 2.8477e-09 deg/d
Q 2.762980839827409 2.1306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      7384 days (20.22 yr)  
   first obs. used      2000-01-05  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52328  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:41:46  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2054-Dec-08 22:25 00:26 Psych 0.0320981804656588 0.0320967006908928 0.0320996609561986 1.27775649433048 1.27775619932866 2471610.434078842 25.9803491855888 422.932771570138 60.160678113401 84.3957406618436 78754.0540006646 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 03:41:47 2020-Nov-12 03:41

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