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74204 (1998 RH58)
Classification: Main-belt Asteroid          SPK-ID: 2074204
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113556819921753 6.8488e-08  
a 2.608980031202466 1.2715e-08 au
q 2.318455280523949 1.7988e-07 au
i 8.242627205642885 6.9171e-06 deg
node 357.9208301566781 2.5225e-05 deg
peri 11.47355110354836 3.4805e-05 deg
M 44.85838513965732 2.0829e-05 deg
tp 2458808.701284619245
(2019-Nov-21.20128462)
8.9162e-05 TDB
period 1539.233686681022
4.21
1.1253e-05
3.081e-08
d
yr
n .2338826151708329 1.7098e-09 deg/d
Q 2.899504781880983 1.4131e-08 au
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      8783 days (24.05 yr)  
   first obs. used      1996-01-16  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51867  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:12:44  

Additional Information
 Earth MOID = 1.31791 au 
 Jupiter MOID = 2.56128 au 
 T_jup = 3.387 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO347990  
diameter diameter 4.538 km 0.288 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74204 (1998 RH58)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RH58 = 1996 BM14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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