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14886 (1991 RL9)
Classification: Main-belt Asteroid          SPK-ID: 2014886
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779399978718601 4.6114e-08  
a 2.435730778437875 1.0639e-08 au
q 2.002316848906215 1.0897e-07 au
i 2.013756237393356 4.7221e-06 deg
node 212.1225205383766 0.00010553 deg
peri 150.9052822996297 0.00010616 deg
M 249.923927313409 1.4375e-05 deg
tp 2459625.053844987407
(2022-Feb-14.55384499)
5.7232e-05 TDB
period 1388.488710263413
3.80
9.0975e-06
2.491e-08
d
yr
n .2592747044602932 1.6988e-09 deg/d
Q 2.869144707969534 1.2533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1467  
   data-arc span      18896 days (51.73 yr)  
   first obs. used      1968-08-28  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53351  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:41:25  

Additional Information
 Earth MOID = .998595 au 
 Jupiter MOID = 2.59248 au 
 T_jup = 3.482 
[ 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 14.87   n/a E2021B10  
diameter diameter 6.203 km 0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.366 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 0.061   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14886 (1991 RL9)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 RL9 = 1968 QT1 = 1972 TW8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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