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(2015 YJ)
Classification: Apollo [NEO]          SPK-ID: 3738548
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5228629407763344 0.00052004  
a 1.263475671423307 0.0008352 au
q .6028510662635632 0.00026021 au
i .1205682938654941 0.00032863 deg
node 264.8213741183164 0.092526 deg
peri 79.02208303739424 0.093657 deg
M 89.1842896953931 1.1865 deg
tp 2458871.990684701625
(2020-Jan-23.49068470)
1.5822 TDB
period 518.7388234567592
1.42
0.51436
0.001408
d
yr
n .6939908557470996 0.00068813 deg/d
Q 1.924100276583051 0.0012719 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      3 days  
   first obs. used      2015-12-16  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .33936  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:29:45  

Additional Information
 Earth MOID = .000172173 au 
 Jupiter MOID = 3.49584 au 
 T_jup = 4.958 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457374.5 (2015-Dec-18.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5232119589321985 0.00052522  
q .6024091156394425 0.00026438 au
tp 2457315.836689541184
(2015-Oct-20.33668954)
0.025226 TDB
node 266.4469328127383 0.0009508 deg
peri 77.39213700451216 0.0033986 deg
i .1228084913435668 0.00018174 deg
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      3 days  
   first obs. used      2015-12-16  
   last obs. used      2015-12-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .33936  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:29:45  

Additional Information
 Jupiter MOID = 3.49584 au 
 T_jup = 4.958 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.758540778710282E-7 -1.383389179814534E-7 1.324509398461892E-5 1.301425748565863E-7 -1.116331226468117E-6 7.638463704611523E-8
q -1.383389179814534E-7 6.989456784549812E-8 -6.656751026993756E-6 -6.948928596470929E-8 6.166251903861573E-7 -3.615257158027677E-8
tp 1.324509398461892E-5 -6.656751026993756E-6 .000636368826906226 6.367017096642996E-6 -5.517528872720404E-5 3.607291461575148E-6
node 1.301425748565863E-7 -6.948928596470929E-8 6.367017096642996E-6 9.040253482042941E-7 -1.796750765577653E-6 -2.506567673590561E-8
peri -1.116331226468117E-6 6.166251903861573E-7 -5.517528872720404E-5 -1.796750765577653E-6 1.155040624882834E-5 -3.004604851778027E-8
i 7.638463704611523E-8 -3.615257158027677E-8 3.607291461575148E-6 -2.506567673590561E-8 -3.004604851778027E-8 3.303050828630353E-8

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 28.2   n/a E2015Y84  

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