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78538 (2002 RP116)
Classification: Main-belt Asteroid          SPK-ID: 2078538
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1538982034239227 5.0845e-08  
a 2.809774919318933 1.7449e-08 au
q 2.377355607210152 1.3861e-07 au
i 10.78745127235412 4.9709e-06 deg
node 306.566673285722 2.7103e-05 deg
peri 199.4313630410913 3.1638e-05 deg
M 126.8018529612516 1.6552e-05 deg
tp 2458394.561115015911
(2018-Oct-03.06111502)
7.7067e-05 TDB
period 1720.306079919282
4.71
1.6025e-05
4.387e-08
d
yr
n .209265086139143 1.9493e-09 deg/d
Q 3.242194231427713 2.0134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      930  
   data-arc span      21878 days (59.90 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:28  

Additional Information
 Earth MOID = 1.39281 au 
 Jupiter MOID = 1.81322 au 
 T_jup = 3.278 
[ 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 14.3   n/a MPO296678  
diameter diameter 4.028 km 0.271 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.228   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78538 (2002 RP116)          Discovered 2002-Sep-07 by LINEAR at Socorro
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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