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78518 (2002 RF93)
Classification: Main-belt Asteroid          SPK-ID: 2078518
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0959812960187638 3.6789e-08  
a 3.001810480580131 1.8438e-08 au
q 2.713692820251342 1.0906e-07 au
i 9.165580638526473 4.9296e-06 deg
node 298.5237543678124 2.6597e-05 deg
peri 126.0801387977845 4.0339e-05 deg
M 84.16212999052938 2.8784e-05 deg
tp 2458556.393071527141
(2019-Mar-13.89307153)
0.00015154 TDB
period 1899.648859507479
5.20
1.7502e-05
4.792e-08
d
yr
n .1895087074636188 1.746e-09 deg/d
Q 3.28992814090892 2.0208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      7848 days (21.49 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4957  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:31:18  

Additional Information
 Earth MOID = 1.74003 au 
 Jupiter MOID = 1.97172 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457456.5 (2016-Mar-09.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09573760769839597 3.6695e-08  
q 2.713833724750217 1.0869e-07 au
tp 2456660.680972026969
(2014-Jan-03.18097203)
0.00015198 TDB
node 298.546191806932 2.66e-05 deg
peri 126.7376923284456 4.0425e-05 deg
i 9.165383378515626 4.9297e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1163  
   data-arc span      7848 days (21.49 yr)  
   first obs. used      1998-12-16  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4957  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:31:18  

Additional Information
 Jupiter MOID = 1.97172 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.346559027123772E-15 -3.942981089074757E-15 -4.807019837855065E-13 -2.712747867973423E-15 -1.189148112329894E-13 -2.909546951387395E-15
q -3.942981089074757E-15 1.181402692818233E-14 1.272774601208533E-12 7.112127685497999E-15 3.450189784734945E-13 9.442766800338629E-15
tp -4.807019837855065E-13 1.272774601208533E-12 2.309794872984445E-8 2.279586160271569E-11 4.640444626008339E-9 4.58364712922769E-12
node -2.712747867973423E-15 7.112127685497999E-15 2.279586160271569E-11 7.075445955068216E-10 -6.936068810984663E-10 2.390055771323372E-11
peri -1.189148112329894E-13 3.450189784734945E-13 4.640444626008339E-9 -6.936068810984663E-10 1.634203149963478E-9 -2.247909390908909E-11
i -2.909546951387395E-15 9.442766800338629E-15 4.58364712922769E-12 2.390055771323372E-11 -2.247909390908909E-11 2.430175358944597E-11

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 14.14   n/a E2020-QM9  
diameter diameter 5.396 km 0.469 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78518 (2002 RF93)          Discovered 2002-Sep-05 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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