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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2411570848120329 5.3873e-08  
a 3.107914169680611 1.8535e-08 au
q 2.358418648674425 1.6913e-07 au
i 2.318974723519385 5.2503e-06 deg
node 72.34386499280771 0.00015695 deg
peri 258.9353865008945 0.00015736 deg
M 263.6301850206555 1.2779e-05 deg
tp 2459536.223226823142
(2021-Nov-17.72322682)
7.3478e-05 TDB
period 2001.252795781212
5.48
1.7902e-05
4.901e-08
d
yr
n .1798873189628548 1.6092e-09 deg/d
Q 3.857409690686796 2.3004e-08 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      9343 days (25.58 yr)  
   first obs. used      1994-09-27  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59164  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:51:16  

Additional Information
 Earth MOID = 1.34918 au 
 Jupiter MOID = 1.52225 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 15.4   n/a MPO432531  
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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