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150261 (1999 RC68)
Classification: Main-belt Asteroid          SPK-ID: 2150261
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2285847208100392 4.3953e-08  
a 3.098974205166128 3.949e-08 au
q 2.390596051680715 1.4744e-07 au
i 14.51067847703427 8.7265e-06 deg
node 335.0795721938412 2.1086e-05 deg
peri 65.75483151089242 3.2043e-05 deg
M 296.2848083890838 2.635e-05 deg
tp 2459553.167843013066
(2021-Dec-04.66784301)
0.00015081 TDB
period 1992.62405518611
5.46
3.8088e-05
1.043e-07
d
yr
n .1806662923008707 3.4533e-09 deg/d
Q 3.807352358651541 4.8517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      373  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1999-08-17  
   last obs. used      2020-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55549  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:17:48  

Additional Information
 Earth MOID = 1.4382 au 
 Jupiter MOID = 1.94917 au 
 T_jup = 3.134 
[ 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 15.16   n/a E2021B55  
diameter diameter 5.489 km 0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.630 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.053   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

150261 (1999 RC68)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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