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20596 (1999 RX188)
Classification: Main-belt Asteroid          SPK-ID: 2020596
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .168884435329513 3.4565e-08  
a 2.742842967063021 1.3222e-08 au
q 2.279619481373057 9.2497e-08 au
i 13.10268349575604 4.7024e-06 deg
node 165.7133887169816 1.6984e-05 deg
peri 299.5087252884727 2.3423e-05 deg
M 150.9181118897137 1.8483e-05 deg
tp 2458504.933422764085
(2019-Jan-21.43342276)
8.2321e-05 TDB
period 1659.204217900081
4.54
1.1997e-05
3.285e-08
d
yr
n .2169714831460726 1.5689e-09 deg/d
Q 3.206066452752986 1.5455e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1144  
   data-arc span      23528 days (64.42 yr)  
   first obs. used      1956-03-16  
   last obs. used      2020-08-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55557  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:24:43  

Additional Information
 Earth MOID = 1.32709 au 
 Jupiter MOID = 1.99987 au 
 T_jup = 3.291 
[ 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 14.48   n/a E2021B10  
diameter diameter 3.552 km 0.263 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 18.386 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.222   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20596 (1999 RX188)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RX188 = 1990 RO14 = 1990 SC23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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