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78561 (2002 RO154)
Classification: Main-belt Asteroid          SPK-ID: 2078561
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06790125707903968 3.5824e-08  
a 2.433566924542693 1.1199e-08 au
q 2.268324671180272 9.1906e-08 au
i 8.049403432908472 4.5905e-06 deg
node 71.78626665937458 2.915e-05 deg
peri 230.6767439512949 4.8563e-05 deg
M 291.8004651713243 3.9481e-05 deg
tp 2459263.189237383258
(2021-Feb-17.68923738)
0.00015203 TDB
period 1386.638863381365
3.80
9.5718e-06
2.621e-08
d
yr
n .2596205901240414 1.7921e-09 deg/d
Q 2.598809177905115 1.1959e-08 au
  Orbit Determination Parameters
   # obs. used (total)      871  
   data-arc span      7550 days (20.67 yr)  
   first obs. used      2000-01-04  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53291  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:23  

Additional Information
 Earth MOID = 1.26195 au 
 Jupiter MOID = 2.52665 au 
 T_jup = 3.489 
[ 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 15.5   n/a MPO381788  

78561 (2002 RO154)          Discovered 2002-Sep-10 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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