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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09585394093079866 5.0876e-08  
a 2.520860338717336 1.9408e-08 au
q 2.279225940715131 1.2749e-07 au
i 4.238992700556415 5.3104e-06 deg
node 161.5715740066258 6.4618e-05 deg
peri 290.2631362553882 6.8893e-05 deg
M 90.04589329310787 2.5095e-05 deg
tp 2458834.835318498862
(2019-Dec-17.33531850)
0.00010126 TDB
period 1461.91325918564
4.00
1.6882e-05
4.622e-08
d
yr
n .2462526403245966 2.8438e-09 deg/d
Q 2.76249473671954 2.1268e-08 au
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      7706 days (21.10 yr)  
   first obs. used      2000-01-05  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52662  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:50:50  

Additional Information
 Earth MOID = 1.29978 au 
 Jupiter MOID = 2.38049 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 16.08   n/a MPCxxxxx  

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

[ hide close-approach data ]
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 19 CATAB v2.0f-lin.ifort 2021-Apr-13 23:50:51 2021-Apr-13 23:50

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