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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1384540458128857 2.4616e-08  
a 2.23785941399017 5.5716e-09 au
q 1.928018724162777 5.4497e-08 au
i 5.318727135321794 2.948e-06 deg
node 134.4223976077558 3.8065e-05 deg
peri 345.5855732931401 4.0665e-05 deg
M 190.1364472761534 1.4702e-05 deg
tp 2459973.459500719583
(2023-Jan-28.95950072)
5.0853e-05 TDB
period 1222.778029355857
3.35
4.5666e-06
1.25e-08
d
yr
n .2944115705036368 1.0995e-09 deg/d
Q 2.547700103817563 6.3431e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1955  
   data-arc span      8365 days (22.90 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50485  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:07:39  

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 14.84   n/a MPO636798  
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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