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117221 (2004 RL307)
Classification: Main-belt Asteroid          SPK-ID: 2117221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819876687246283 3.715e-08  
a 2.445043894168296 1.1686e-08 au
q 2.000076055939221 8.9497e-08 au
i 5.678923721778039 5.2411e-06 deg
node 255.0787669037833 5.7378e-05 deg
peri 311.0606626755254 6.0501e-05 deg
M 65.60079143281186 2.0548e-05 deg
tp 2458346.030934353957
(2018-Aug-15.53093435)
7.9044e-05 TDB
period 1396.459732142122
3.82
1.0011e-05
2.741e-08
d
yr
n .2577947589278298 1.8482e-09 deg/d
Q 2.890011732397371 1.3813e-08 au
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      7471 days (20.45 yr)  
   first obs. used      1999-03-21  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54547  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:16:41  

Additional Information
 Earth MOID = 1.00098 au 
 Jupiter MOID = 2.10379 au 
 T_jup = 3.470 
[ 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 16.0   n/a MPO436562  
diameter diameter 2.565 km 0.878 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117221 (2004 RL307)          Discovered 2004-Sep-13 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 RL307 = 2003 KF19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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