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20775 (2000 RU9)
Classification: Main-belt Asteroid          SPK-ID: 2020775
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21402588830898 2.973e-08  
a 2.39653191785554 8.9235e-09 au
q 1.883612045275685 7.2222e-08 au
i 2.897930691220232 3.6216e-06 deg
node 70.41840466918789 7.9855e-05 deg
peri 313.9172574883985 8.0498e-05 deg
M 180.2307297940712 1.1305e-05 deg
tp 2459877.184467132635
(2022-Oct-24.68446713)
4.4577e-05 TDB
period 1355.105952695327
3.71
7.5686e-06
2.072e-08
d
yr
n .2656618836954811 1.4838e-09 deg/d
Q 2.909451790435396 1.0833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1351  
   data-arc span      14438 days (39.53 yr)  
   first obs. used      1981-09-03  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54451  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:31:19  

Additional Information
 Earth MOID = .887608 au 
 Jupiter MOID = 2.5458 au 
 T_jup = 3.495 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.04   n/a E2021B10  

20775 (2000 RU9)          Discovered 2000-Sep-01 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 RU9 = 1981 RC7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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