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505657 (2014 SR339)
Classification: Apollo [NEO, PHA]          SPK-ID: 2505657
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 114 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3038825625238026 1.5393e-08  
a 1.299766492922542 5.9321e-09 au
q .9047901203706638 2.0734e-08 au
i 29.79435499049622 5.2208e-06 deg
node 138.7591763441172 2.0492e-06 deg
peri 299.6432264460151 6.1604e-06 deg
M 232.6445688479527 5.7192e-06 deg
tp 2459191.974701876091
(2020-Dec-08.47470188)
9.7189e-06 TDB
period 541.248159201766
1.48
3.7053e-06
1.014e-08
d
yr
n .665129282898493 4.5534e-09 deg/d
Q 1.69474286547442 7.7347e-09 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   # delay obs. used      5  
   # Doppler obs. used      1  
   data-arc span      2132 days (5.84 yr)  
   first obs. used      2014-09-30  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36501  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-06 05:55:22  

Additional Information
 Earth MOID = .0357214 au 
 Jupiter MOID = 3.60583 au 
 T_jup = 4.830 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458091.5 (2017-Dec-04.0) TDB
Reference: JPL 114 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3038552122158765 1.5352e-08  
q .904425089615094 2.0745e-08 au
tp 2458109.464457781356
(2017-Dec-21.96445778)
4.8467e-06 TDB
node 138.7831200001473 2.0503e-06 deg
peri 299.5377403791205 6.153e-06 deg
i 29.79072730410947 5.2205e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      558  
   # delay obs. used      5  
   # Doppler obs. used      1  
   data-arc span      2132 days (5.84 yr)  
   first obs. used      2014-09-30  
   last obs. used      2020-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36501  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-06 05:55:22  

Additional Information
 Jupiter MOID = 3.60583 au 
 T_jup = 4.830 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.356764015029358E-16 -3.12188001616087E-16 -2.775934776997354E-15 -1.148641386228037E-14 -2.641248611021616E-14 -5.980191778664604E-15
q -3.12188001616087E-16 4.303399649115285E-16 7.268643516983085E-15 1.523976899321923E-14 4.002362939768613E-14 5.617555046230161E-15
tp -2.775934776997354E-15 7.268643516983085E-15 2.349081223756106E-11 -8.172221649527647E-12 2.871393940469219E-11 -5.795694154426444E-12
node -1.148641386228037E-14 1.523976899321923E-14 -8.172221649527647E-12 4.203604770508042E-12 -9.251387292351817E-12 -1.374663007002236E-12
peri -2.641248611021616E-14 4.002362939768613E-14 2.871393940469219E-11 -9.251387292351817E-12 3.785940061976913E-11 -3.192043492407539E-12
i -5.980191778664604E-15 5.617555046230161E-15 -5.795694154426444E-12 -1.374663007002236E-12 -3.192043492407539E-12 2.725330015665832E-11

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 18.5   n/a MPO456432  
diameter diameter 0.971 km 0.367 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 8.71 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Franco, L.; Marchini, A.; Baj, G.; Scarfi, G.; et al. (2018) Minor Planet Bull. 45, 399-400.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 248-256.]
geometric albedo albedo 0.068   0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

505657 (2014 SR339)          Discovered 2014-Sep-30 by WISE at WISE
Reference: Last Updated: 2017-11-07

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