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138654 (2000 RP77)
Classification: Main-belt Asteroid          SPK-ID: 2138654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2122161733983022 3.4669e-08  
a 3.139357850668061 2.2883e-08 au
q 2.473135340671366 1.0774e-07 au
i 13.77899693030713 4.2152e-06 deg
node 179.479100517385 1.7786e-05 deg
peri 278.3670052744802 2.0544e-05 deg
M 153.8138829209969 1.2294e-05 deg
tp 2458332.434099573752
(2018-Aug-01.93409957)
6.5124e-05 TDB
period 2031.70037852799
5.56
2.2214e-05
6.082e-08
d
yr
n .1771914814825341 1.9374e-09 deg/d
Q 3.805580360664755 2.7739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      678  
   data-arc span      7252 days (19.85 yr)  
   first obs. used      2000-09-08  
   last obs. used      2020-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53919  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:27:19  

Additional Information
 Earth MOID = 1.53484 au 
 Jupiter MOID = 1.64375 au 
 T_jup = 3.132 
[ 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 14.95   n/a E2021B55  
diameter diameter 7.722 km 0.383 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.039   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

138654 (2000 RP77)          Discovered 2000-Sep-08 by Sarounova, L. at Ondrejov
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Alternate Designations
 2000 RP77 = 2001 VY98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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