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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1974616987785953 3.872e-08  
a 2.22526284149639 6.8208e-09 au
q 1.785858660585629 8.6672e-08 au
i 4.218630896321201 3.5366e-06 deg
node 81.92803624001547 5.662e-05 deg
peri 272.9299976270992 5.7462e-05 deg
M 6.664363019145939 1.3463e-05 deg
tp 2458978.054641530836
(2020-May-08.55464153)
4.528e-05 TDB
period 1212.468322281533
3.32
5.5746e-06
1.526e-08
d
yr
n .2969149736816041 1.3651e-09 deg/d
Q 2.664667022407151 8.1676e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2495  
   data-arc span      32917 days (90.12 yr)  
   first obs. used      1930-09-17  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45791  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:05:40  

Additional Information
 Earth MOID = .787276 au 
 Jupiter MOID = 2.78057 au 
 T_jup = 3.617 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456799.5 (2014-May-22.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1971115462008885 3.8581e-08  
q 1.787107721071771 8.6283e-08 au
tp 2456552.616796543985
(2013-Sep-17.11679654)
3.9759e-05 TDB
node 81.99414422913728 5.6554e-05 deg
peri 272.9043759673329 5.7408e-05 deg
i 4.220729791967345 3.5383e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2495  
   data-arc span      32917 days (90.12 yr)  
   first obs. used      1930-09-17  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45791  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:05:40  

Additional Information
 Jupiter MOID = 2.78057 au 
 T_jup = 3.617 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.488466704713666E-15 -3.322267849443078E-15 8.698976925485164E-14 2.485985696869723E-15 9.968544595963661E-15 3.217379049991996E-17
q -3.322267849443078E-15 7.444749452121657E-15 -1.052957252363992E-13 -5.40313995369498E-15 3.140831907286168E-16 -7.648931518425512E-17
tp 8.698976925485164E-14 -1.052957252363992E-13 1.580741082514205E-9 9.630321968765083E-13 4.127113804876719E-10 -9.16761376096932E-14
node 2.485985696869723E-15 -5.40313995369498E-15 9.630321968765083E-13 3.198338917543728E-9 -3.18894271690216E-9 -6.596211462318473E-12
peri 9.968544595963661E-15 3.140831907286168E-16 4.127113804876719E-10 -3.18894271690216E-9 3.295710799568731E-9 6.555816344843592E-12
i 3.217379049991996E-17 -7.648931518425512E-17 -9.16761376096932E-14 -6.596211462318473E-12 6.555816344843592E-12 1.251936394574239E-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

[ show close-approach data ]
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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