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66619 (1999 RE203)
Classification: Main-belt Asteroid          SPK-ID: 2066619
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1545234496517814 4.199e-08  
a 2.581668664414985 1.217e-08 au
q 2.182740316531675 1.0771e-07 au
i 11.71979549385365 4.6355e-06 deg
node 286.8111208602518 2.5755e-05 deg
peri 4.798263841010315 3.1652e-05 deg
M 90.32533412133471 2.0535e-05 deg
tp 2458820.348894302966
(2019-Dec-02.84889430)
8.5377e-05 TDB
period 1515.127504173911
4.15
1.0714e-05
2.933e-08
d
yr
n .2376037653651347 1.6801e-09 deg/d
Q 2.980597012298296 1.4051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      905  
   data-arc span      10311 days (28.23 yr)  
   first obs. used      1992-12-25  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48075  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:02:13  

Additional Information
 Earth MOID = 1.16474 au 
 Jupiter MOID = 2.20683 au 
 T_jup = 3.378 
[ 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 15.23   n/a E2021B10  
diameter diameter 3.045 km 0.885 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 100.424 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 0.174   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66619 (1999 RE203)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RE203 = 1999 SU27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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