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19681 (1999 RE194)
Classification: Main-belt Asteroid          SPK-ID: 2019681
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09949459773955029 2.1207e-08  
a 2.907031754162733 1.2787e-08 au
q 2.617797799166212 6.2822e-08 au
i 5.357570514662432 3.3383e-07 deg
node 301.1234285997862 8.1982e-06 deg
peri 187.0977200490701 1.2036e-05 deg
M 340.5570464924178 6.2063e-06 deg
tp 2459298.276126290006
(2021-Mar-24.77612629)
3.127e-05 TDB
period 1810.393953299097
4.96
1.1945e-05
3.27e-08
d
yr
n .1988517467946514 1.312e-09 deg/d
Q 3.196265709159253 1.4059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2420  
   data-arc span      16565 days (45.35 yr)  
   first obs. used      1975-11-06  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43541  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:02:02  

Additional Information
 Earth MOID = 1.63289 au 
 Jupiter MOID = 1.86019 au 
 T_jup = 3.271 
[ 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 12.96   n/a E2021B10  
diameter diameter 9.877 km 2.608 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.125   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

19681 (1999 RE194)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RE194 = 1975 VF6 = 1975 XC3 = 1977 FY1 = 1982 FS1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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