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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 ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1975193675914951 1.406e-08  
a 2.225578322173961 5.5704e-09 au
q 1.78598349945282 3.3138e-08 au
i 4.218491642895754 8.0242e-07 deg
node 81.92886029351986 7.7963e-06 deg
peri 272.9654917020431 8.5154e-06 deg
M 66.00953163735106 7.4398e-06 deg
tp 2458978.134759193990
(2020-May-08.63475919)
2.467e-05 TDB
period 1212.726173092056
3.32
4.553e-06
1.247e-08
d
yr
n .2968518433820204 1.1145e-09 deg/d
Q 2.665173144895103 6.6707e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2756  
   data-arc span      33061 days (90.52 yr)  
   first obs. used      1930-09-17  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43954  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:33:30  

Additional Information
 Earth MOID = .785723 au 
 Jupiter MOID = 2.78086 au 
 T_jup = 3.617 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.66   n/a MPCxxxxx  
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

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 ]
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