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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2040187326053829 6.1201e-08  
a 2.61305234075662 2.0749e-08 au
q 2.079940713963926 1.6639e-07 au
i 11.72488984263239 7.2665e-06 deg
node 25.29509308431082 2.4689e-05 deg
peri 301.5209825809736 2.7811e-05 deg
M 318.4716877988884 1.4919e-05 deg
tp 2459178.476380523370
(2020-Nov-24.97638052)
6.4909e-05 TDB
period 1542.838935474437
4.22
1.8376e-05
5.031e-08
d
yr
n .2333360869514851 2.7792e-09 deg/d
Q 3.146163967549315 2.4982e-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 = 1.09712 au 
 Jupiter MOID = 2.32141 au 
 T_jup = 3.350 
[ 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-August); 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1934-Oct-30 06:42 00:01 Europ 0.0428849644170066 0.0428823285789787 0.0428876052230354 6.05903730480953 6.05903726390579 2427740.779065825 1.22138761358747 868.802414874066 69.8550376331487 -82.6072566759129 91053.486778522 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 04:18:39 2019-Sep-24 04:18
2133-Jul-18 23:10 00:02 Juno 0.0462428076821354 0.0462414698138254 0.0462441457017163 8.95300211761137 8.95300208822587 2500321.465058736 1.6503960339696 1380.83813664015 66.3988750737884 -89.7355985217241 104162.803748536 T 17 CATAB v2.0f-lin.ifort 2019-Sep-24 04:18:39 2019-Sep-24 04:18

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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