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78546 (2002 RF122)
Classification: Outer Main-belt Asteroid          SPK-ID: 2078546
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0443053504782117 3.8321e-08  
a 3.212849593047563 2.5865e-08 au
q 3.070503165793811 1.2929e-07 au
i 16.59988393895072 4.1103e-06 deg
node 134.658741367458 1.5731e-05 deg
peri 239.4174675341753 5.3444e-05 deg
M 10.21513652675496 5.001e-05 deg
tp 2458940.813557568998
(2020-Apr-01.31355757)
0.00029236 TDB
period 2103.458844517922
5.76
2.5401e-05
6.954e-08
d
yr
n .171146681066872 2.0668e-09 deg/d
Q 3.355196020301315 2.7011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      814  
   data-arc span      7947 days (21.76 yr)  
   first obs. used      1999-01-22  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52533  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:27  

Additional Information
 Earth MOID = 2.09522 au 
 Jupiter MOID = 1.91981 au 
 T_jup = 3.124 
[ 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 13.9   n/a MPO412654  
diameter diameter 11.044 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78546 (2002 RF122)          Discovered 2002-Sep-08 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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