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JPL Small-Body Database Browser
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512244 (2015 YE18)
Classification: Apollo [NEO]          SPK-ID: 2512244
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5409156661609614 3.1459e-07  
a 1.037401884620194 1.9362e-08 au
q .4762549531242251 3.204e-07 au
i 31.0273509422189 1.5119e-05 deg
node 256.7303993060041 1.9599e-05 deg
peri 80.57339341935341 2.3722e-05 deg
M 175.4480241421559 3.7727e-05 deg
tp 2458812.410324712489
(2019-Nov-24.91032471)		 3.5838e-05 TDB
period 385.9392742356596
1.06		 1.0805e-05
2.958e-08		 d
yr
n .9327892340393925 2.6114e-08 deg/d
Q 1.598548816116164 2.9835e-08 au
   Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      1545 days (4.23 yr)  
   first obs. used      2015-12-31  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .49837  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-24 06:28:08  

Additional Information
 Earth MOID = .121895 au 
 Jupiter MOID = 4.0392 au 
 T_jup = 5.659 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457897.5 (2017-May-24.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5408432985814767 3.1444e-07  
q .4762780906635313 3.1936e-07 au
tp 2458040.724133007429
(2017-Oct-14.22413301)		 1.8866e-05 TDB
node 256.7398968889215 1.9592e-05 deg
peri 80.59095895086114 2.388e-05 deg
i 31.02877325380869 1.513e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      1545 days (4.23 yr)  
   first obs. used      2015-12-31  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .49837  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-24 06:28:08  

Additional Information
 Jupiter MOID = 4.0392 au 
 T_jup = 5.659 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.887502816812453E-14 -1.0039982062907E-13 4.592043572237505E-12 2.619257935863041E-12 -5.294002852914358E-12 2.863970328359902E-12
q -1.0039982062907E-13 1.019918749612332E-13 -4.683381193926685E-12 -2.646899783828721E-12 5.364097590202578E-12 -2.89163993188982E-12
tp 4.592043572237505E-12 -4.683381193926685E-12 3.559396139036563E-10 1.069710140750473E-10 -1.842675231726924E-10 1.102127322135258E-10
node 2.619257935863041E-12 -2.646899783828721E-12 1.069710140750473E-10 3.838339209356978E-10 -4.055725607502486E-10 2.337838993574044E-10
peri -5.294002852914358E-12 5.364097590202578E-12 -1.842675231726924E-10 -4.055725607502486E-10 5.702498092790858E-10 -2.878772304767054E-10
i 2.863970328359902E-12 -2.89163993188982E-12 1.102127322135258E-10 2.337838993574044E-10 -2.878772304767054E-10 2.28909744194234E-10

[ 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 17.8   n/a MPO437934  

512244 (2015 YE18)          Discovered 2015-Dec-31 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2018-02-05

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