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19687 (1999 RP199)
Classification: Main-belt Asteroid          SPK-ID: 2019687
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .133838113125374 2.8782e-08  
a 2.726821484665078 1.1962e-08 au
q 2.361868842327773 8.2294e-08 au
i 7.10843177391505 1.0007e-06 deg
node 293.0913265830971 3.5602e-06 deg
peri 342.6389008253428 5.9191e-06 deg
M 332.3501576920768 5.3269e-06 deg
tp 2459326.820444618564
(2021-Apr-22.32044462)
2.4677e-05 TDB
period 1644.687863180035
4.50
1.0822e-05
2.963e-08
d
yr
n .2188865182624582 1.4403e-09 deg/d
Q 3.091774127002383 1.3563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2268  
   data-arc span      17446 days (47.76 yr)  
   first obs. used      1972-10-06  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47213  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:02:23  

Additional Information
 Earth MOID = 1.34469 au 
 Jupiter MOID = 2.04462 au 
 T_jup = 3.332 
[ 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 13.2   n/a MPO337424  
diameter diameter 6.653 km 0.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.276   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19687 (1999 RP199)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RP199 = 1972 TT5 = 1997 EL8 = 1998 MW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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