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91519 (1999 RT180)
Classification: Main-belt Asteroid          SPK-ID: 2091519
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1662101395043399 5.5752e-08  
a 2.740808435925351 2.1e-08 au
q 2.285258283435526 1.5352e-07 au
i 13.69814610633067 6.3554e-06 deg
node 8.055132299214494 1.9019e-05 deg
peri 5.504735424367819 2.4266e-05 deg
M 185.8523025219817 1.821e-05 deg
tp 2459802.236556359481
(2022-Aug-10.73655636)
8.914e-05 TDB
period 1657.358463357489
4.54
1.9048e-05
5.215e-08
d
yr
n .2172131183200461 2.4965e-09 deg/d
Q 3.196358588415175 2.4491e-08 au
  Orbit Determination Parameters
   # obs. used (total)      582  
   data-arc span      7540 days (20.64 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:41:58  

Additional Information
 Earth MOID = 1.28592 au 
 Jupiter MOID = 2.2706 au 
 T_jup = 3.289 
[ 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 15.2   n/a MPO432453  

91519 (1999 RT180)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RT180 = 2002 GW134 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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