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190385 (1999 RP202)
Classification: Main-belt Asteroid          SPK-ID: 2190385
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2524218984542609 5.6334e-08  
a 2.772683336945404 2.0177e-08 au
q 2.07279734522115 1.5219e-07 au
i 8.630509037813955 6.7613e-06 deg
node 229.5098446851148 3.36e-05 deg
peri 189.4527686827778 3.5289e-05 deg
M 179.3173516299686 1.2984e-05 deg
tp 2458360.520570115819
(2018-Aug-30.02057012)
5.567e-05 TDB
period 1686.354343344916
4.62
1.8408e-05
5.04e-08
d
yr
n .2134782653602524 2.3303e-09 deg/d
Q 3.472569328669657 2.527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55873  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:25  

Additional Information
 Earth MOID = 1.08488 au 
 Jupiter MOID = 1.89252 au 
 T_jup = 3.273 
[ 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 15.47   n/a E2021B55  
diameter diameter 3.710 km 1.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.097   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190385 (1999 RP202)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Alternate Designations
 1999 RP202 = 1999 TB111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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