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91540 (1999 RH205)
Classification: Main-belt Asteroid          SPK-ID: 2091540
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2513969377559349 6.2123e-08  
a 2.731421804576141 1.5568e-08 au
q 2.04475072718591 1.7376e-07 au
i 12.68187750175501 6.2082e-06 deg
node 308.4032347152765 2.8075e-05 deg
peri 76.59538340188827 3.0489e-05 deg
M 284.6790366128023 1.2031e-05 deg
tp 2459741.480820119068
(2022-Jun-10.98082012)
5.6811e-05 TDB
period 1648.851656403183
4.51
1.4097e-05
3.86e-08
d
yr
n .2183337710229838 1.8666e-09 deg/d
Q 3.418092881966373 1.9482e-08 au
  Orbit Determination Parameters
   # obs. used (total)      663  
   data-arc span      8021 days (21.96 yr)  
   first obs. used      1999-07-23  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50356  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:04:46  

Additional Information
 Earth MOID = 1.09014 au 
 Jupiter MOID = 2.28049 au 
 T_jup = 3.273 
[ 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 14.78   n/a MPO637244  

91540 (1999 RH205)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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