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52856 (1998 RD77)
Classification: Main-belt Asteroid          SPK-ID: 2052856
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1384540461329525 2.4621e-08  
a 2.237859414252331 5.5884e-09 au
q 1.928018723672377 5.4501e-08 au
i 5.318727075730244 2.9515e-06 deg
node 134.4223939292876 3.9158e-05 deg
peri 345.5855741587853 4.1856e-05 deg
M 190.1364495215758 1.503e-05 deg
tp 2459973.459493194153
(2023-Jan-28.95949319)
5.1913e-05 TDB
period 1222.778029570727
3.35
4.5803e-06
1.254e-08
d
yr
n .2944115704519021 1.1028e-09 deg/d
Q 2.547700104832285 6.3621e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1869  
   data-arc span      8330 days (22.81 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51321  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:54:45  

Additional Information
 Earth MOID = .944877 au 
 Jupiter MOID = 2.51793 au 
 T_jup = 3.619 
[ 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 14.83   n/a E2021B10  
diameter diameter 2.709 km 0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.348   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52856 (1998 RD77)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RD77 = 2000 CE95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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