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66541 (1999 RP118)
Classification: Main-belt Asteroid          SPK-ID: 2066541
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2039071157947989 2.9007e-08  
a 2.392708457166912 6.7048e-09 au
q 1.904818176728184 6.8893e-08 au
i 9.185630448817916 3.5808e-06 deg
node 172.7538841051676 1.7577e-05 deg
peri 238.9055423159501 1.9257e-05 deg
M 263.3641345469385 7.8143e-06 deg
tp 2459759.384938742470
(2022-Jun-28.88493874)
2.9973e-05 TDB
period 1351.864313883998
3.70
5.6822e-06
1.556e-08
d
yr
n .2662989149892532 1.1193e-09 deg/d
Q 2.880598737605641 8.0719e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1401  
   data-arc span      8000 days (21.90 yr)  
   first obs. used      1999-08-12  
   last obs. used      2021-07-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52032  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:32:27  

Additional Information
 Earth MOID = .93229 au 
 Jupiter MOID = 2.5541 au 
 T_jup = 3.485 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.98   n/a E2021B10  
diameter diameter 5.547 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.82913 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.057   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66541 (1999 RP118)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RP118 = 2001 BE60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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