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19644 (1999 RD102)
Classification: Main-belt Asteroid          SPK-ID: 2019644
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 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1344843387822318 1.5032e-08  
a 3.025186922490629 1.2605e-08 au
q 2.618346659526822 4.6036e-08 au
i 10.85965507337505 3.8499e-07 deg
node 247.0873737918077 3.262e-06 deg
peri 29.99751221804766 8.4453e-06 deg
M 63.6923781334939 8.5699e-06 deg
tp 2458860.474324249172
(2020-Jan-11.97432425)
4.5394e-05 TDB
period 1921.882128717798
5.26
1.2012e-05
3.289e-08
d
yr
n .1873163783671674 1.1707e-09 deg/d
Q 3.432027185454436 1.43e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2654  
   data-arc span      9648 days (26.41 yr)  
   first obs. used      1994-09-05  
   last obs. used      2021-02-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43769  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:00:16  

Additional Information
 Earth MOID = 1.60668 au 
 Jupiter MOID = 1.6841 au 
 T_jup = 3.204 
[ 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 12.83   n/a E2021B10  
diameter diameter 10.574 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.102 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 0.131   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19644 (1999 RD102)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RD102 = 1998 KD18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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