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74674 (1999 RJ105)
Classification: Main-belt Asteroid          SPK-ID: 2074674
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218958724206583 3.9354e-08  
a 2.380078945915784 1.0105e-08 au
q 2.089957146373338 9.4509e-08 au
i 8.211547399415574 4.4038e-06 deg
node 18.59312254510604 2.8223e-05 deg
peri 359.7977356080125 3.3644e-05 deg
M 222.5403421001382 2.0599e-05 deg
tp 2459512.604071526888
(2021-Oct-25.10407153)
7.8575e-05 TDB
period 1341.175065952677
3.67
8.5413e-06
2.338e-08
d
yr
n .2684213337535329 1.7095e-09 deg/d
Q 2.670200745458229 1.1337e-08 au
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      11565 days (31.66 yr)  
   first obs. used      1988-10-16  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5383  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:50:01  

Additional Information
 Earth MOID = 1.09189 au 
 Jupiter MOID = 2.79227 au 
 T_jup = 3.515 
[ 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 15.5   n/a MPO385286  
diameter diameter 2.013 km 0.510 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74674 (1999 RJ105)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RJ105 = 1988 UX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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