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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 106 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3038825673619566 1.8801e-08  
a 1.299766494486571 6.8083e-09 au
q .9047901151709417 2.3811e-08 au
i 29.79435451330075 5.2508e-06 deg
node 138.7591760570712 2.0836e-06 deg
peri 299.643226476085 6.5436e-06 deg
M 232.6445675216418 6.0454e-06 deg
tp 2459191.974704215763
(2020-Dec-08.47470422)
1.0379e-05 TDB
period 541.2481601787048
1.48
4.2526e-06
1.164e-08
d
yr
n .665129281697952 5.226e-09 deg/d
Q 1.694742873802201 8.8772e-09 au
  Orbit Determination Parameters
   # obs. used (total)      523  
   # delay obs. used      5  
   # Doppler obs. used      1  
   data-arc span      2096 days (5.74 yr)  
   first obs. used      2014-09-30  
   last obs. used      2020-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36669  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-27 06:00:44  

Additional Information
 Earth MOID = .0357214 au 
 Jupiter MOID = 3.60583 au 
 T_jup = 4.830 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457944.5 (2017-Jul-10.0) TDB
Reference: JPL 106 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3038303982814956 1.8771e-08  
q .9044147630784367 2.3838e-08 au
tp 2458109.474179754530
(2017-Dec-21.97417975)
5.0067e-06 TDB
node 138.7846657329828 2.0847e-06 deg
peri 299.544680036124 6.5353e-06 deg
i 29.79157021800185 5.2504e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      523  
   # delay obs. used      5  
   # Doppler obs. used      1  
   data-arc span      2096 days (5.74 yr)  
   first obs. used      2014-09-30  
   last obs. used      2020-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36669  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-27 06:00:44  

Additional Information
 Jupiter MOID = 3.60583 au 
 T_jup = 4.830 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.523434380410593E-16 -4.390125109495714E-16 -1.060174627064037E-14 -1.250550002060755E-14 -4.613575163475804E-14 -1.054981770788655E-14
q -4.390125109495714E-16 5.682548673321434E-16 1.584579556327116E-14 1.632095449191097E-14 6.15474581523908E-14 1.059454371589973E-14
tp -1.060174627064037E-14 1.584579556327116E-14 2.50666547049419E-11 -8.476225435451342E-12 3.129927171433771E-11 -5.837111573399898E-12
node -1.250550002060755E-14 1.632095449191097E-14 -8.476225435451342E-12 4.345952568659687E-12 -9.527982273492256E-12 -1.217481936801559E-12
peri -4.613575163475804E-14 6.15474581523908E-14 3.129927171433771E-11 -9.527982273492256E-12 4.271057580881454E-11 -2.831501961532994E-12
i -1.054981770788655E-14 1.059454371589973E-14 -5.837111573399898E-12 -1.217481936801559E-12 -2.831501961532994E-12 2.75668032724161E-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

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