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79646 (1998 SB13)
Classification: Main-belt Asteroid          SPK-ID: 2079646
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2142024381650779 3.3792e-08  
a 2.237111374385384 7.7051e-09 au
q 1.757916663545206 7.4128e-08 au
i 6.468092096027299 4.3908e-06 deg
node 147.8172668397011 3.236e-05 deg
peri 150.6449774536518 3.4074e-05 deg
M 222.6903511867062 1.207e-05 deg
tp 2459466.652901113488
(2021-Sep-09.15290111)
4.1997e-05 TDB
period 1222.164981494064
3.35
6.3141e-06
1.729e-08
d
yr
n .2945592497339513 1.5218e-09 deg/d
Q 2.716306085225562 9.3555e-09 au
  Orbit Determination Parameters
   # obs. used (total)      877  
   data-arc span      7883 days (21.58 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:42:49  

Additional Information
 Earth MOID = .745772 au 
 Jupiter MOID = 2.51921 au 
 T_jup = 3.599 
[ 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 15.9   n/a MPO453218  
diameter diameter 2.644 km 0.316 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.133   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79646 (1998 SB13)          Discovered 1998-Sep-22 by Pravec, P. at Ondrejov
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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