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249271 (2008 SX184)
Classification: Main-belt Asteroid          SPK-ID: 2249271
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09456805238046195 4.9961e-08  
a 3.13480445358873 3.554e-08 au
q 2.838352101819245 1.6085e-07 au
i 16.36535386153296 1.0094e-05 deg
node 6.223807074908884 1.7297e-05 deg
peri 60.70066931666133 5.7502e-05 deg
M 4.287849993806248 5.2725e-05 deg
tp 2458976.353666628796
(2020-May-06.85366663)
0.00029697 TDB
period 2027.281744041901
5.55
3.4476e-05
9.439e-08
d
yr
n .1775776855180714 3.0199e-09 deg/d
Q 3.431256805358214 3.8901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      277  
   data-arc span      10338 days (28.30 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60257  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:21:11  

Additional Information
 Earth MOID = 1.88833 au 
 Jupiter MOID = 1.93948 au 
 T_jup = 3.143 
[ 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 15.3   n/a MPO503175  
diameter diameter 4.641 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249271 (2008 SX184)          Discovered 2008-Sep-24 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 SX184 = 2005 JO182 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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