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101123 (1998 RH55)
Classification: Main-belt Asteroid          SPK-ID: 2101123
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1611434443581461 8.6373e-08  
a 2.554475151493528 1.4088e-08 au
q 2.142838227054563 2.2781e-07 au
i 6.987751979026492 7.0783e-06 deg
node 329.5509327581101 2.8886e-05 deg
peri 331.6424427223114 3.473e-05 deg
M 160.5064016214887 1.4489e-05 deg
tp 2458335.623767728011
(2018-Aug-05.12376773)
6.052e-05 TDB
period 1491.25169588171
4.08
1.2336e-05
3.377e-08
d
yr
n .2414079400507559 1.997e-09 deg/d
Q 2.966112075932492 1.6358e-08 au
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      8077 days (22.11 yr)  
   first obs. used      1998-09-14  
   last obs. used      2020-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52577  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:17  

Additional Information
 Earth MOID = 1.13056 au 
 Jupiter MOID = 2.28147 au 
 T_jup = 3.410 
[ 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 15.6   n/a MPO449612  
diameter diameter 3.804 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.084   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101123 (1998 RH55)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 RH55 = 2002 RK32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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