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181705 (1989 RY)
Classification: Main-belt Asteroid          SPK-ID: 2181705
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3191236098141684 4.9117e-08  
a 2.552001342923536 1.7623e-08 au
q 1.737597462119172 1.293e-07 au
i 5.7414796014951 5.7486e-06 deg
node 232.3218530004602 3.9811e-05 deg
peri 141.5392411512636 4.1624e-05 deg
M 265.709751365166 1.6439e-05 deg
tp 2459786.517464753545
(2022-Jul-26.01746475)
6.9219e-05 TDB
period 1489.085980195469
4.08
1.5425e-05
4.223e-08
d
yr
n .2417590419814064 2.5043e-09 deg/d
Q 3.366405223727901 2.3247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      11627 days (31.83 yr)  
   first obs. used      1989-08-30  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47416  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:31:01  

Additional Information
 Earth MOID = .742504 au 
 Jupiter MOID = 2.12831 au 
 T_jup = 3.360 
[ 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 15.64   n/a MPO614063  

181705 (1989 RY)          Discovered 1989-Sep-03 by Elst, E. W. at Haute Provence
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

Alternate Designations
 1989 RY = 2003 CN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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