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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2115829846621341 3.4722e-08  
a 3.140950117514158 2.2722e-08 au
q 2.476378516975632 1.0806e-07 au
i 13.7793392154561 4.2147e-06 deg
node 179.4538168722166 1.7779e-05 deg
peri 278.3626158508095 2.0561e-05 deg
M 188.5837380056822 1.2524e-05 deg
tp 2460364.642990396430
(2024-Feb-24.14299040)
7.688e-05 TDB
period 2033.246277148829
5.57
2.2063e-05
6.041e-08
d
yr
n .1770567609275641 1.9213e-09 deg/d
Q 3.805521718052685 2.753e-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 = 1.5384 au 
 Jupiter MOID = 1.64315 au 
 T_jup = 3.132 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457578.5 (2016-Jul-09.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2136183699014771 3.4659e-08  
q 2.468538523865569 1.079e-07 au
tp 2458333.189243664903
(2018-Aug-02.68924366)
6.4727e-05 TDB
node 179.5085307817893 1.7785e-05 deg
peri 278.4272492153688 2.0502e-05 deg
i 13.78170609533993 4.2163e-06 deg
  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
 Jupiter MOID = 1.64315 au 
 T_jup = 3.132 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.201263211714716E-15 -3.687405299681317E-15 -3.674280774619349E-13 -9.077055653734867E-16 -8.986440823946464E-14 1.895835595402023E-15
q -3.687405299681317E-15 1.164268498262706E-14 1.601321932833159E-12 2.902177359518692E-15 3.263791236373679E-13 -5.429571659577519E-15
tp -3.674280774619349E-13 1.601321932833159E-12 4.189537082414508E-9 -3.500911167117164E-12 6.82471811859863E-10 -3.3867895936608E-12
node -9.077055653734867E-16 2.902177359518692E-15 -3.500911167117164E-12 3.162989507005764E-10 -3.074883067632509E-10 2.487255807154833E-11
peri -8.986440823946464E-14 3.263791236373679E-13 6.82471811859863E-10 -3.074883067632509E-10 4.203345001507362E-10 -2.479069297866307E-11
i 1.895835595402023E-15 -5.429571659577519E-15 -3.3867895936608E-12 2.487255807154833E-11 -2.479069297866307E-11 1.777697167897277E-11

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

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