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487662 (2015 PJ39)
Classification: Outer Main-belt Asteroid          SPK-ID: 2487662
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1074695891051927 7.9101e-08  
a 3.231547814724339 8.6804e-08 au
q 2.884254698902131 2.6442e-07 au
i 12.48140362942022 9.2883e-06 deg
node 130.5787275553233 2.8628e-05 deg
peri 226.5363929315613 4.4405e-05 deg
M 273.1938718750035 3.4754e-05 deg
tp 2459512.137291201903
(2021-Oct-24.63729120)
0.0002136 TDB
period 2121.848178362033
5.81
8.5494e-05
2.341e-07
d
yr
n .1696634112049916 6.8361e-09 deg/d
Q 3.578840930546547 9.6132e-08 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      4891 days (13.39 yr)  
   first obs. used      2006-01-04  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61823  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:19:34  

Additional Information
 Earth MOID = 1.89463 au 
 Jupiter MOID = 1.85993 au 
 T_jup = 3.140 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457275.5 (2015-Sep-10.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1080593357115742 7.8432e-08  
q 2.881349585674801 2.6189e-07 au
tp 2457399.245677023723
(2016-Jan-11.74567702)
0.00019222 TDB
node 130.6187818056322 2.8649e-05 deg
peri 227.6356597448611 4.4633e-05 deg
i 12.47827692133725 9.2865e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      4891 days (13.39 yr)  
   first obs. used      2006-01-04  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61823  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:19:34  

Additional Information
 Jupiter MOID = 1.85993 au 
 T_jup = 3.140 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.151656661679303E-15 -1.957561109972293E-14 -5.453912207485852E-12 1.280910628367549E-14 -8.722309211834471E-13 9.511508403587739E-15
q -1.957561109972293E-14 6.858744548921087E-14 1.819382365820149E-11 -4.227201601806886E-14 2.839577333911632E-12 -2.168367897938722E-14
tp -5.453912207485852E-12 1.819382365820149E-11 3.694836322642275E-8 -3.884380821014625E-11 6.606256219653669E-9 -1.225887393843842E-11
node 1.280910628367549E-14 -4.227201601806886E-14 -3.884380821014625E-11 8.20748232211545E-10 -8.077966551191833E-10 5.557923018363146E-11
peri -8.722309211834471E-13 2.839577333911632E-12 6.606256219653669E-9 -8.077966551191833E-10 1.992061488188663E-9 -5.642647924378888E-11
i 9.511508403587739E-15 -2.168367897938722E-14 -1.225887393843842E-11 5.557923018363146E-11 -5.642647924378888E-11 8.62388435173273E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO434802  

487662 (2015 PJ39)          Discovered 2012-Jan-26 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 PJ39 = 2014 OD236 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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