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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .138991493681431 2.464e-08  
a 2.236694050826836 5.5978e-09 au
q 1.925812603794043 5.4556e-08 au
i 5.318324111137188 2.9651e-06 deg
node 134.4248814608418 4.0821e-05 deg
peri 345.4546299360368 4.3653e-05 deg
M 132.558277484568 1.5383e-05 deg
tp 2458750.603461138575
(2019-Sep-24.10346114)
5.1684e-05 TDB
period 1221.823012968527
3.35
4.5868e-06
1.256e-08
d
yr
n .2946416921100121 1.1061e-09 deg/d
Q 2.547575497859629 6.3758e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1831  
   data-arc span      7978 days (21.84 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:48:38  

Additional Information
 Earth MOID = .942132 au 
 Jupiter MOID = 2.51885 au 
 T_jup = 3.619 
[ 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 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

[ show close-approach data ]
Alternate Designations
 1998 RD77 = 2000 CE95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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