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JPL Small-Body Database Browser
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249249 (2008 RA106)
Classification: Main-belt Asteroid          SPK-ID: 2249249
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .203889239213364 6.1225e-08  
a 2.611627583467901 2.0843e-08 au
q 2.079144822365995 1.6623e-07 au
i 11.72825522219505 7.2681e-06 deg
node 25.30709103519607 2.4682e-05 deg
peri 301.6646866751689 2.7791e-05 deg
M 224.9179571113565 1.4453e-05 deg
tp 2459178.942795642426
(2020-Nov-25.44279564)
6.4873e-05 TDB
period 1541.577266513048
4.22
1.8455e-05
5.053e-08
d
yr
n .2335270555813901 2.7957e-09 deg/d
Q 3.144110344569808 2.5093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      405  
   data-arc span      10092 days (27.63 yr)  
   first obs. used      1991-10-11  
   last obs. used      2019-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5912  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:18:37  

Additional Information
 Earth MOID = 1.09543 au 
 Jupiter MOID = 2.32037 au 
 T_jup = 3.351 
[ 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 15.5   n/a MPO433633  
diameter diameter 4.061 km 1.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 0.9 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.074   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249249 (2008 RA106)          Discovered 2008-Sep-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 RA106 = 1991 TK11 = 2004 XW164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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