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74180 (1998 RK26)
Classification: Main-belt Asteroid          SPK-ID: 2074180
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1500567154976762 4.3734e-08  
a 2.619359203347375 1.1887e-08 au
q 2.226306764584458 1.1568e-07 au
i 13.75344252565592 6.2406e-06 deg
node 148.5878565803726 1.7087e-05 deg
peri 145.3018889824077 2.8292e-05 deg
M 349.4164230742645 1.9675e-05 deg
tp 2458646.021963422752
(2019-Jun-11.52196342)
8.4601e-05 TDB
period 1548.42799813181
4.24
1.0541e-05
2.886e-08
d
yr
n .2324938585677491 1.5827e-09 deg/d
Q 3.012411642110291 1.3671e-08 au
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      10140 days (27.76 yr)  
   first obs. used      1992-01-28  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56799  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:45:05  

Additional Information
 Earth MOID = 1.22364 au 
 Jupiter MOID = 2.29273 au 
 T_jup = 3.349 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO436302  
diameter diameter 2.379 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.342   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74180 (1998 RK26)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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