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19693 (1999 RU230)
Classification: Main-belt Asteroid          SPK-ID: 2019693
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1086201483697087 1.18e-08  
a 2.998909686291024 1.3754e-08 au
q 2.673167671218736 3.2344e-08 au
i 11.32451436131749 1.0286e-06 deg
node 69.20112564992834 4.9511e-06 deg
peri 278.9267988321171 1.5651e-05 deg
M 44.37107155151748 1.2321e-05 deg
tp 2458966.701929059233
(2020-Apr-27.20192906)
6.4793e-05 TDB
period 1896.895941333148
5.19
1.305e-05
3.573e-08
d
yr
n .1897837367647011 1.3056e-09 deg/d
Q 3.324651701363311 1.5248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2742  
   data-arc span      11464 days (31.39 yr)  
   first obs. used      1989-10-30  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40174  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:57:42  

Additional Information
 Earth MOID = 1.6956 au 
 Jupiter MOID = 2.12402 au 
 T_jup = 3.215 
[ 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 12.83   n/a MPCxxxxx  
rotation period rot_per 7.45057 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.]

19693 (1999 RU230)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RU230 = 1989 UH9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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