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19666 (1999 RO144)
Classification: Main-belt Asteroid          SPK-ID: 2019666
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254166935828347 4.1481e-08  
a 2.661248671060449 1.1408e-08 au
q 2.327483661934334 1.1289e-07 au
i 13.66064978011118 4.7169e-06 deg
node 194.2262627579497 1.4188e-05 deg
peri 333.523947114977 2.0457e-05 deg
M 92.70460123344225 1.4043e-05 deg
tp 2458592.156729692188
(2019-Apr-18.65672969)
6.1737e-05 TDB
period 1585.720399580146
4.34
1.0196e-05
2.792e-08
d
yr
n .2270261517070209 1.4597e-09 deg/d
Q 2.995013680186563 1.2838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1697  
   data-arc span      8609 days (23.57 yr)  
   first obs. used      1995-10-15  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51917  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:45:24  

Additional Information
 Earth MOID = 1.33953 au 
 Jupiter MOID = 1.9944 au 
 T_jup = 3.334 
[ 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 13.7   n/a MPO474025  
diameter diameter 5.101 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.296   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19666 (1999 RO144)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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