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JPL Small-Body Database Browser
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66606 (1999 RK194)
Classification: Main-belt Asteroid          SPK-ID: 2066606
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2453569586347333 6.3228e-08  
a 2.609647463020258 1.1446e-08 au
q 1.96935229838476 1.6233e-07 au
i 3.541340845404105 7.0262e-06 deg
node 223.5714515073351 6.0919e-05 deg
peri 156.065268906677 6.1814e-05 deg
M 316.325577016403 8.7001e-06 deg
tp 2459187.308169875077
(2020-Dec-03.80816988)
3.7664e-05 TDB
period 1539.824376850622
4.22
1.0131e-05
2.774e-08
d
yr
n .2337928957432809 1.5382e-09 deg/d
Q 3.249942627655757 1.4255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      711  
   data-arc span      14825 days (40.59 yr)  
   first obs. used      1978-10-08  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49974  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:28:30  

Additional Information
 Earth MOID = .972554 au 
 Jupiter MOID = 2.21792 au 
 T_jup = 3.364 
[ 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 15.2   n/a MPO436246  
rotation period rot_per 2.75 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

66606 (1999 RK194)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RK194 = 1978 TE8 = 1978 WH20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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