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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08743322448113242 5.2371e-08  
a 2.522257899921615 8.2472e-09 au
q 2.301728758758459 1.3225e-07 au
i 1.608551178461677 5.2371e-06 deg
node 341.7208476663184 0.00010608 deg
peri 121.760244357753 0.00011337 deg
M 52.35612029787801 3.6228e-05 deg
tp 2458787.711761485930
(2019-Oct-31.21176149)
0.00014723 TDB
period 1463.129151457961
4.01
7.1761e-06
1.965e-08
d
yr
n .2460479990035545 1.2068e-09 deg/d
Q 2.742787041084771 8.9683e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1531  
   data-arc span      10310 days (28.23 yr)  
   first obs. used      1992-02-05  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5291  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:03:37  

Additional Information
 Earth MOID = 1.31909 au 
 Jupiter MOID = 2.35077 au 
 T_jup = 3.450 
[ 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 15.1   n/a MPO502605  
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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