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30819 (1990 RL2)
Classification: Main-belt Asteroid          SPK-ID: 2030819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2398202962426593 3.1849e-08  
a 2.340590486392048 7.8796e-09 au
q 1.779269382562757 7.299e-08 au
i 9.997672146997356 3.7674e-06 deg
node 174.6516237625718 1.8574e-05 deg
peri 139.6369434905404 2.0094e-05 deg
M 181.4732304884801 9.7545e-06 deg
tp 2459849.115653609590
(2022-Sep-26.61565361)
3.7284e-05 TDB
period 1307.936260418273
3.58
6.6047e-06
1.808e-08
d
yr
n .275242770534455 1.3899e-09 deg/d
Q 2.901911590221339 9.7693e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1678  
   data-arc span      25882 days (70.86 yr)  
   first obs. used      1950-05-10  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44249  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:40  

Additional Information
 Earth MOID = .777589 au 
 Jupiter MOID = 2.46346 au 
 T_jup = 3.506 
[ 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 14.67   n/a MPCxxxxx  
diameter diameter 5.763 km 0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.101   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30819 (1990 RL2)          Discovered 1990-Sep-15 by Olmstead, C. M. at Palomar
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 RL2 = 2000 DE16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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