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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .111658500039767 4.2835e-08  
a 2.861389897145286 1.8362e-08 au
q 2.5418913932011 1.2126e-07 au
i 5.795337335481305 4.6408e-06 deg
node 58.97183340006293 4.1379e-05 deg
peri 329.7963067216676 4.5537e-05 deg
M 70.87535803942919 1.8697e-05 deg
tp 2458652.437888024483
(2019-Jun-17.93788802)
9.1531e-05 TDB
period 1767.925605983936
4.84
1.7018e-05
4.659e-08
d
yr
n .2036284777942579 1.9601e-09 deg/d
Q 3.180888401089472 2.0413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      940  
   data-arc span      7396 days (20.25 yr)  
   first obs. used      1999-09-04  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52251  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:17:01  

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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