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11865 (1989 SC)
Classification: Main-belt Asteroid          SPK-ID: 2011865
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2311923021364774 3.4493e-08  
a 2.20638170354644 6.837e-09 au
q 1.696283238111736 7.7591e-08 au
i 6.784121975920806 4.3585e-06 deg
node 354.573238574679 3.1435e-05 deg
peri 299.3371382732338 3.2749e-05 deg
M 234.4962297638471 9.2842e-06 deg
tp 2459617.824296414116
(2022-Feb-07.32429641)
3.1673e-05 TDB
period 1197.069589434566
3.28
5.5641e-06
1.523e-08
d
yr
n .3007343960429614 1.3979e-09 deg/d
Q 2.716480168981144 8.4177e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1714  
   data-arc span      12521 days (34.28 yr)  
   first obs. used      1986-10-09  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51531  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:02:50  

Additional Information
 Earth MOID = .691454 au 
 Jupiter MOID = 2.52194 au 
 T_jup = 3.617 
[ 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 14.34   n/a E2021B10  
diameter diameter 2.570 km 0.381 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.411   0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11865 (1989 SC)          Discovered 1989-Sep-23 by Mizuno, Y., Furuta, T. at Kani
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1989 SC = 1986 TF8 = 1998 FB18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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