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100253 (1994 SB2)
Classification: Main-belt Asteroid          SPK-ID: 2100253
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2412961386170409 5.1357e-08  
a 3.108121334824844 1.8227e-08 au
q 2.358143658378367 1.6214e-07 au
i 2.318977215247254 5.1908e-06 deg
node 72.34370826617997 0.00015258 deg
peri 258.9265325720823 0.00015299 deg
M 299.6313624802097 1.294e-05 deg
tp 2459536.124956686058
(2021-Nov-17.62495669)
7.3464e-05 TDB
period 2001.452896255469
5.48
1.7606e-05
4.82e-08
d
yr
n .1798693342588908 1.5822e-09 deg/d
Q 3.858099011271322 2.2625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      9372 days (25.66 yr)  
   first obs. used      1994-09-27  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .586  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:07:11  

Additional Information
 Earth MOID = 1.34699 au 
 Jupiter MOID = 1.52186 au 
 T_jup = 3.173 
[ 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 15.52   n/a E2021B55  
diameter diameter 3.365 km 0.918 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.108   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100253 (1994 SB2)          Discovered 1994-Sep-27 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1994 SB2 = 2004 JS17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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