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91527 (1999 RT189)
Classification: Main-belt Asteroid          SPK-ID: 2091527
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116585345389993 4.2558e-08  
a 2.861389898363185 1.7743e-08 au
q 2.541891295567255 1.199e-07 au
i 5.795341127075859 4.5948e-06 deg
node 58.97180905830139 3.9449e-05 deg
peri 329.7963491015074 4.369e-05 deg
M 70.87534312246342 1.8182e-05 deg
tp 2458652.437961058057
(2019-Jun-17.93796106)
8.9198e-05 TDB
period 1767.925607112664
4.84
1.6444e-05
4.502e-08
d
yr
n .2036284776642519 1.894e-09 deg/d
Q 3.180888501159114 1.9724e-08 au
  Orbit Determination Parameters
   # obs. used (total)      980  
   data-arc span      7455 days (20.41 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50997  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:32:48  

Additional Information
 Earth MOID = 1.54924 au 
 Jupiter MOID = 2.24885 au 
 T_jup = 3.285 
[ 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 14.8   n/a MPO453355  
diameter diameter 4.495 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91527 (1999 RT189)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RT189 = 2000 YH123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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