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74184 (1998 RM39)
Classification: Main-belt Asteroid          SPK-ID: 2074184
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05363398230168931 5.3588e-08  
a 2.395326344570332 1.0957e-08 au
q 2.266855453798876 1.2838e-07 au
i 6.708362093347644 5.1852e-06 deg
node 16.83940705785839 3.1021e-05 deg
peri 153.2546682116568 5.267e-05 deg
M 129.9572533696278 4.0074e-05 deg
tp 2458511.686168023670
(2019-Jan-28.18616802)
0.00015109 TDB
period 1354.083554005037
3.71
9.2912e-06
2.544e-08
d
yr
n .2658624712893167 1.8243e-09 deg/d
Q 2.523797235341787 1.1545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1117  
   data-arc span      7615 days (20.85 yr)  
   first obs. used      1998-08-27  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53675  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:12:08  

Additional Information
 Earth MOID = 1.27324 au 
 Jupiter MOID = 2.43768 au 
 T_jup = 3.518 
[ 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 MPO337817  

74184 (1998 RM39)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RM39 = 1999 XN231 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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