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118398 (1999 RO58)
Classification: Main-belt Asteroid          SPK-ID: 2118398
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1034474269754136 6.437e-08  
a 3.02410202039388 2.2771e-08 au
q 2.711266447472984 2.0423e-07 au
i 7.588777975250234 6.3152e-06 deg
node 316.9172724912519 3.2503e-05 deg
peri 48.96508216238431 4.1451e-05 deg
M 354.6187996184672 2.306e-05 deg
tp 2459229.212416678800
(2021-Jan-14.71241668)
0.00012303 TDB
period 1920.848374247628
5.26
2.1696e-05
5.94e-08
d
yr
n .1874171875440234 2.1169e-09 deg/d
Q 3.336937593314776 2.5127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      679  
   data-arc span      7803 days (21.36 yr)  
   first obs. used      1999-09-05  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52488  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:57:05  

Additional Information
 Earth MOID = 1.71446 au 
 Jupiter MOID = 2.12925 au 
 T_jup = 3.224 
[ 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 14.93   n/a E2021B55  
diameter diameter 6.465 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118398 (1999 RO58)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 1999 RO58 = 2004 PC4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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