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3899 Wichterle (1982 SN1)
Classification: Main-belt Asteroid          SPK-ID: 2003899
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761632633928802 3.916e-08  
a 3.190078960640509 1.6159e-08 au
q 2.628104240453109 1.2483e-07 au
i 2.818079266471941 3.9448e-06 deg
node 82.03297115596858 7.5933e-05 deg
peri 325.7818215156979 7.6667e-05 deg
M 234.9051332619408 1.3409e-05 deg
tp 2459923.665275256062
(2022-Dec-10.16527526)
8.1286e-05 TDB
period 2081.136547651607
5.70
1.5813e-05
4.329e-08
d
yr
n .17298240252723 1.3144e-09 deg/d
Q 3.752053680827908 1.9006e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2775  
   data-arc span      26269 days (71.92 yr)  
   first obs. used      1948-10-10  
   last obs. used      2020-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43921  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:42:02  

Additional Information
 Earth MOID = 1.63789 au 
 Jupiter MOID = 1.63887 au 
 T_jup = 3.171 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457032.5 (2015-Jan-10.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1782035921668862 3.9035e-08  
q 2.61931804374702 1.2406e-07 au
tp 2457847.291762852659
(2017-Apr-03.79176285)
7.0281e-05 TDB
node 82.03818203411844 7.5912e-05 deg
peri 326.308020127408 7.6628e-05 deg
i 2.819496928843082 3.9478e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2775  
   data-arc span      26269 days (71.92 yr)  
   first obs. used      1948-10-10  
   last obs. used      2020-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43921  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:42:02  

Additional Information
 Jupiter MOID = 1.63887 au 
 T_jup = 3.171 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.523727449810244E-15 -4.814039385719906E-15 3.282749602813794E-13 4.157827591126999E-15 4.198823700093516E-15 7.237851328061286E-17
q -4.814039385719906E-15 1.539099177125177E-14 -5.239408977812739E-13 -1.151959600753153E-14 5.065845922062779E-14 -2.663240723637267E-16
tp 3.282749602813794E-13 -5.239408977812739E-13 4.939476316931727E-9 8.294646574724773E-12 7.483750781627027E-10 -3.844979534131473E-13
node 4.157827591126999E-15 -1.151959600753153E-14 8.294646574724773E-12 5.762602191087688E-9 -5.754233846293973E-9 -5.534236718016006E-11
peri 4.198823700093516E-15 5.065845922062779E-14 7.483750781627027E-10 -5.754233846293973E-9 5.871911672565099E-9 5.520540948972083E-11
i 7.237851328061286E-17 -2.663240723637267E-16 -3.844979534131473E-13 -5.534236718016006E-11 5.520540948972083E-11 1.558481676146474E-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 11.56   n/a E2021B10  
diameter diameter 21.174 km 0.367 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.8572 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Owings, L.E. (2013) Minor Planet Bull. 40, 8-10.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.094   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3899 Wichterle (1982 SN1)          Discovered 1982-Sep-17 by Mahrova, M. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1982 SN1 = 1948 TF2 = 1949 YG = 1949 YW = 1951 GL1 = 1953 RX = 1954 YN = 1965 SQ = 1976 SZ = 1984 CB = 1985 FQ = 1987 OF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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