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2831 Stevin (1930 SZ)
Classification: Main-belt Asteroid          SPK-ID: 2002831
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1974616948168617 4.0379e-08  
a 2.225262842383588 7.31e-09 au
q 1.785858670113537 9.0959e-08 au
i 4.218631121049975 3.5566e-06 deg
node 81.92804348654251 5.8183e-05 deg
peri 272.929991384935 5.9025e-05 deg
M 6.664361290483535 1.4367e-05 deg
tp 2458978.054647339492
(2020-May-08.55464734)
4.8314e-05 TDB
period 1212.468323006638
3.32
5.9744e-06
1.636e-08
d
yr
n .2969149735040369 1.463e-09 deg/d
Q 2.664667014653638 8.7534e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2324  
   data-arc span      32825 days (89.87 yr)  
   first obs. used      1930-09-17  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47103  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:56:57  

Additional Information
 Earth MOID = .787276 au 
 Jupiter MOID = 2.78057 au 
 T_jup = 3.617 
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Orbital Elements at Epoch 2456704.5 (2014-Feb-16.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1970439591582373 4.0218e-08  
q 1.786959365477847 9.0521e-08 au
tp 2456552.523675301943
(2013-Sep-17.02367530)
4.1731e-05 TDB
node 81.99402679023945 5.8112e-05 deg
peri 272.864817464045 5.897e-05 deg
i 4.220961935567998 3.5585e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2324  
   data-arc span      32825 days (89.87 yr)  
   first obs. used      1930-09-17  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47103  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:56:57  

Additional Information
 Jupiter MOID = 2.78057 au 
 T_jup = 3.617 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.617448213546075E-15 -3.633149467054391E-15 -5.453370109061106E-14 8.270344193383965E-16 -2.034842267478034E-14 -1.188907895903225E-17
q -3.633149467054391E-15 8.194042430736128E-15 2.36693002855044E-13 -8.495712019260386E-16 7.305186839384276E-14 5.433114477693965E-17
tp -5.453370109061106E-14 2.36693002855044E-13 1.74148430087617E-9 9.835101602992065E-12 4.405159636071489E-10 1.573512723804785E-13
node 8.270344193383965E-16 -8.495712019260386E-16 9.835101602992065E-12 3.377013074722855E-9 -3.364964115654644E-9 -1.987951516951603E-12
peri -2.034842267478034E-14 7.305186839384276E-14 4.405159636071489E-10 -3.364964115654644E-9 3.477465495991674E-9 2.021136563348983E-12
i -1.188907895903225E-17 5.433114477693965E-17 1.573512723804785E-13 -1.987951516951603E-12 2.021136563348983E-12 1.26627889605466E-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 12.6   n/a MPO448941  
diameter diameter 5.453 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.651   0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2831 Stevin (1930 SZ)          Discovered 1930-Sep-17 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1930 SZ = 1960 WF = 1975 BE1 = 1979 HL3 = 1980 UX = 1980 XC1 = 1982 DA1 = 1982 HX 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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