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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09425741122067952 4.97e-08  
a 3.133532850536858 3.5782e-08 au
q 2.838174156070297 1.6018e-07 au
i 16.36833601604642 1.0429e-05 deg
node 6.229181395982582 1.764e-05 deg
peri 60.8340459939199 5.8782e-05 deg
M 293.0973001729972 5.4386e-05 deg
tp 2458977.022512456938
(2020-May-07.52251246)
0.00030536 TDB
period 2026.048348347651
5.55
3.4703e-05
9.501e-08
d
yr
n .1776857893315325 3.0435e-09 deg/d
Q 3.428891545003419 3.9154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      274  
   data-arc span      10265 days (28.10 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62336  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:47:05  

Additional Information
 Earth MOID = 1.88786 au 
 Jupiter MOID = 1.94127 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 15.2   n/a MPO454847  
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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