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(2015 OS78)
Classification: Apollo [NEO]          SPK-ID: 3725151
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7550368816806716 0.00023118  
a 2.264918995647927 0.001722 au
q .5548216199145974 0.00010176 au
i 7.464275426055592 0.0012569 deg
node 10.47099625803853 0.005402 deg
peri 52.57236449372599 0.005662 deg
M 129.6325941166047 0.56035 deg
tp 2458552.178930876587
(2019-Mar-09.67893088)
1.4266 TDB
period 1245.023182512672
3.41
1.4199
0.003887
d
yr
n .2891512423675982 0.00032977 deg/d
Q 3.975016371381256 0.0030222 au
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      30 days  
   first obs. used      2015-07-26  
   last obs. used      2015-08-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .44348  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:32:39  

Additional Information
 Earth MOID = .0756413 au 
 Jupiter MOID = 1.48912 au 
 T_jup = 3.155 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457232.5 (2015-Jul-29.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .753852250255567 0.0002224  
q .5581165064781713 7.5406e-05 au
tp 2457306.159997720697
(2015-Oct-10.65999772)
0.0073438 TDB
node 10.62603746256358 0.0061691 deg
peri 52.43068550447308 0.0064679 deg
i 7.470253346304165 0.0012804 deg
  Orbit Determination Parameters
   # obs. used (total)      32  
   data-arc span      30 days  
   first obs. used      2015-07-26  
   last obs. used      2015-08-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .44348  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:32:39  

Additional Information
 Jupiter MOID = 1.48912 au 
 T_jup = 3.155 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.945972027273123E-8 -1.676947066130417E-8 -1.633233257297478E-6 1.367579680251527E-6 -1.434624626849938E-6 2.846379196422199E-7
q -1.676947066130417E-8 5.686121061817471E-9 5.537481891366864E-7 -4.637610544823067E-7 4.864473307197898E-7 -9.6502348423773E-8
tp -1.633233257297478E-6 5.537481891366864E-7 5.393206499306824E-5 -4.515434377593685E-5 4.736900742174263E-5 -9.399497942043261E-6
node 1.367579680251527E-6 -4.637610544823067E-7 -4.515434377593685E-5 3.80574783312906E-5 -3.989748891885639E-5 7.852233279470245E-6
peri -1.434624626849938E-6 4.864473307197898E-7 4.736900742174263E-5 -3.989748891885639E-5 4.183401781131539E-5 -8.238967584468043E-6
i 2.846379196422199E-7 -9.6502348423773E-8 -9.399497942043261E-6 7.852233279470245E-6 -8.238967584468043E-6 1.639483930654423E-6

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.9   n/a MPO344241  

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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