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117940 (6191 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117940
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1931201428167997 4.1518e-08  
a 3.133015401165894 2.3851e-08 au
q 2.527967019445503 1.3883e-07 au
i 4.599181496116312 6.2189e-06 deg
node 222.0540913167713 4.9906e-05 deg
peri 107.1026684542672 5.2609e-05 deg
M 266.9825327188684 1.7041e-05 deg
tp 2459523.864463842738
(2021-Nov-05.36446384)
9.8617e-05 TDB
period 2025.546518203302
5.55
2.313e-05
6.333e-08
d
yr
n .1777298110730761 2.0295e-09 deg/d
Q 3.738063782886284 2.8457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      433  
   data-arc span      21765 days (59.59 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61042  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:15:45  

Additional Information
 Earth MOID = 1.52191 au 
 Jupiter MOID = 1.67251 au 
 T_jup = 3.179 
[ 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 15.4   n/a MPO432683  
diameter diameter 4.884 km 0.332 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117940 (6191 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 6191 P-L = 1999 RF61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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