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78554 (2002 RH136)
Classification: Main-belt Asteroid          SPK-ID: 2078554
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1372548604578707 4.4961e-08  
a 2.44393243923781 1.4123e-08 au
q 2.108490833321761 1.1404e-07 au
i 5.332808047432358 4.0184e-06 deg
node 117.4852763454364 5.805e-05 deg
peri 210.10619661 6.232e-05 deg
M 246.1542107670019 2.6606e-05 deg
tp 2459441.812970895512
(2021-Aug-15.31297090)
0.00010536 TDB
period 1395.507647605954
3.82
1.2096e-05
3.312e-08
d
yr
n .2579706392993214 2.2361e-09 deg/d
Q 2.77937404515386 1.6061e-08 au
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      7952 days (21.77 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57617  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:25  

Additional Information
 Earth MOID = 1.09865 au 
 Jupiter MOID = 2.53284 au 
 T_jup = 3.481 
[ 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 15.8   n/a MPO381788  

78554 (2002 RH136)          Discovered 2002-Sep-11 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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