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501105 (2013 SA87)
Classification: TransNeptunian Object          SPK-ID: 2501105
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07499125568438755 0.00021335  
a 41.83383326871386 0.011705 au
q 38.6966615818017 0.0087158 au
i 40.80260140239621 0.0010777 deg
node 207.5641121052965 0.00069067 deg
peri 140.4661932279007 0.49369 deg
M 21.80414289697066 0.42486 deg
tp 2453014.641622409094
(2004-Jan-10.14162241)
115.51 TDB
period 98830.25561312556
270.58
41.48
0.1136
d
yr
n .003642609216849872 1.5289e-06 deg/d
Q 44.97100495562601 0.012583 au
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      1401 days (3.84 yr)  
   first obs. used      2013-09-23  
   last obs. used      2017-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .32021  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Oct-09 22:23:37  

Additional Information
 Earth MOID = 37.777 au 
 Jupiter MOID = 34.0713 au 
 T_jup = 4.405 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457007.5 (2014-Dec-16.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06882570381198563 0.00020283  
q 38.74252611957761 0.0078416 au
tp 2453536.093385128133
(2005-Jun-14.59338513)
127.09 TDB
node 207.5642991486966 0.00069103 deg
peri 142.7524207427677 0.53956 deg
i 40.82503159941218 0.0010796 deg
  Orbit Determination Parameters
   # obs. used (total)      53  
   data-arc span      1401 days (3.84 yr)  
   first obs. used      2013-09-23  
   last obs. used      2017-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .32021  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Oct-09 22:23:37  

Additional Information
 Jupiter MOID = 34.0713 au 
 T_jup = 4.405 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.113918616592366E-8 -1.79644979966196E-7 -.008461007156859634 2.89236094935749E-8 -3.599238931600867E-5 -4.045835468252317E-8
q -1.79644979966196E-7 6.149131717462312E-5 .9706343835210512 -7.570129429370238E-7 .0041202950616642 1.419327617148436E-6
tp -.008461007156859634 .9706343835210512 16152.12074249867 -.01584009852525902 68.57368003520131 .02769021327480037
node 2.89236094935749E-8 -7.570129429370238E-7 -.01584009852525902 4.775228311764086E-7 -6.762419291772593E-5 -7.417262061599479E-7
peri -3.599238931600867E-5 .0041202950616642 68.57368003520131 -6.762419291772593E-5 .2911293853433066 .0001181317896442726
i -4.045835468252317E-8 1.419327617148436E-6 .02769021327480037 -7.417262061599479E-7 .0001181317896442726 1.16546039168777E-6

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.1   n/a MPO317805  

501105 (2013 SA87)          Discovered 2013-Sep-23 by Hellmich, S., Motolla, S. at Calar Alto-CASADO
Reference: Last Updated: 2017-10-09
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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