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59918 (1999 RF161)
Classification: Main-belt Asteroid          SPK-ID: 2059918
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08949176394479573 3.8745e-08  
a 2.252805733884767 9.564e-09 au
q 2.051198174934469 8.739e-08 au
i 6.152882714424802 4.8213e-06 deg
node 295.9744429951448 4.0548e-05 deg
peri 153.7778937712573 5.1784e-05 deg
M 306.568333787617 3.5201e-05 deg
tp 2459183.807509862081
(2020-Nov-30.30750986)
0.00012137 TDB
period 1235.048581267257
3.38
7.8649e-06
2.153e-08
d
yr
n .2914865094866241 1.8562e-09 deg/d
Q 2.454413292835064 1.042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1102  
   data-arc span      9423 days (25.80 yr)  
   first obs. used      1994-01-04  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49776  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:57:01  

Additional Information
 Earth MOID = 1.06979 au 
 Jupiter MOID = 2.68078 au 
 T_jup = 3.613 
[ 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 15.0   n/a MPO385202  

59918 (1999 RF161)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RF161 = 2000 YM68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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