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JPL Small-Body Database Browser
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74195 (1998 RJ49)
Classification: Main-belt Asteroid          SPK-ID: 2074195
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08753155420037657 5.2702e-08  
a 2.5225355012844 9.4587e-09 au
q 2.301734048331351 1.3347e-07 au
i 1.608361052336882 5.498e-06 deg
node 341.7310370675779 0.00011013 deg
peri 121.9015948032892 0.00011727 deg
M 313.8173894062478 3.6812e-05 deg
tp 2458788.228554279340
(2019-Oct-31.72855428)
0.00014974 TDB
period 1463.370707538681
4.01
8.2307e-06
2.253e-08
d
yr
n .2460073842843982 1.3837e-09 deg/d
Q 2.74333695423745 1.0287e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1316  
   data-arc span      10158 days (27.81 yr)  
   first obs. used      1992-02-05  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56282  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 06:45:05  

Additional Information
 Earth MOID = 1.31927 au 
 Jupiter MOID = 2.35136 au 
 T_jup = 3.449 
[ 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 MPO417338  
diameter diameter 2.735 km 0.836 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.197 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74195 (1998 RJ49)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RJ49 = 2000 AW63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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