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3312 Pedersen (1984 SN)
Classification: Main-belt Asteroid          SPK-ID: 2003312
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1217971097164905 4.0049e-08  
a 3.006089060120853 1.4743e-08 au
q 2.639956101047772 1.2647e-07 au
i 9.651827646175134 3.4967e-06 deg
node 214.3836984980895 2.2408e-05 deg
peri 128.5847605545418 2.66e-05 deg
M 320.0984269503813 1.3984e-05 deg
tp 2459211.503037905231
(2020-Dec-28.00303791)
7.4264e-05 TDB
period 1903.7117547076
5.21
1.4004e-05
3.834e-08
d
yr
n .1891042586199159 1.3911e-09 deg/d
Q 3.372222019193935 1.6538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2582  
   data-arc span      24393 days (66.78 yr)  
   first obs. used      1953-10-18  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43025  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:02:15  

Additional Information
 Earth MOID = 1.64635 au 
 Jupiter MOID = 2.13151 au 
 T_jup = 3.218 
[ show covariance matrix ]

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 11.5   n/a MPO435729  
diameter diameter 17.004 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 24.438 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.142   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3312 Pedersen (1984 SN)          Discovered 1984-Sep-24 by Augustesen, K. at Brorfelde
and P. Jensen and H. J. Fogh Olsen.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1984 SN = 1927 UK = 1953 UN = 1958 UC = 1967 JE = 1974 VH = 1978 LL = 1978 NS7 = 1979 VQ = 1982 FJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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