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78468 (2002 RL44)
Classification: Main-belt Asteroid          SPK-ID: 2078468
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1706613030727533 4.4327e-08  
a 3.047775865420039 2.3837e-08 au
q 2.527638464753767 1.4051e-07 au
i 7.573875376215415 5.6668e-06 deg
node 134.8455037398782 3.31e-05 deg
peri 245.5028579330062 3.6336e-05 deg
M 91.68595973478254 1.4986e-05 deg
tp 2458505.536356445158
(2019-Jan-22.03635645)
7.9634e-05 TDB
period 1943.448181108422
5.32
2.2799e-05
6.242e-08
d
yr
n .1852377663060089 2.1731e-09 deg/d
Q 3.567913266086312 2.7904e-08 au
  Orbit Determination Parameters
   # obs. used (total)      713  
   data-arc span      7772 days (21.28 yr)  
   first obs. used      1999-01-08  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50163  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:32:57  

Additional Information
 Earth MOID = 1.54135 au 
 Jupiter MOID = 1.94071 au 
 T_jup = 3.202 
[ 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 14.8   n/a MPO417367  
diameter diameter 5.523 km 1.181 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.28 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 [Result based on fragmentary lightcurve(s), may be completely wrong.]
geometric albedo albedo 0.121   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78468 (2002 RL44)          Discovered 2002-Sep-05 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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