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186952 (2004 RD57)
Classification: Main-belt Asteroid          SPK-ID: 2186952
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07440437340116535 4.6992e-08  
a 3.179255629898374 2.9289e-08 au
q 2.942705106873658 1.6467e-07 au
i 8.280132708579941 4.7891e-06 deg
node 197.8272210073953 3.0526e-05 deg
peri 128.4188001362433 4.6525e-05 deg
M 333.6194119117703 3.475e-05 deg
tp 2459352.228991934500
(2021-May-17.72899193)
0.00020042 TDB
period 2070.554186045273
5.67
2.8613e-05
7.834e-08
d
yr
n .1738664954659286 2.4026e-09 deg/d
Q 3.41580615292309 3.1468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      8509 days (23.30 yr)  
   first obs. used      1997-05-03  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53314  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:23  

Additional Information
 Earth MOID = 1.93911 au 
 Jupiter MOID = 1.87639 au 
 T_jup = 3.179 
[ 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 15.27   n/a E2021B55  
diameter diameter 5.758 km 0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

186952 (2004 RD57)          Discovered 2004-Sep-08 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2004 RD57 = 1997 JB6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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