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102128 (1999 RC178)
Classification: Main-belt Asteroid          SPK-ID: 2102128
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2113212413254251 3.5854e-08  
a 2.540023894448418 9.4585e-09 au
q 2.003262892077338 9.0609e-08 au
i 2.384299529299819 5.5125e-06 deg
node 109.1444954562689 0.00010016 deg
peri 277.28477001 0.00010144 deg
M 68.52168531915963 1.6245e-05 deg
tp 2458919.063341757408
(2020-Mar-10.56334176)
6.6271e-05 TDB
period 1478.615076313706
4.05
8.2591e-06
2.261e-08
d
yr
n .2434710735518171 1.36e-09 deg/d
Q 3.076784896819498 1.1457e-08 au
  Orbit Determination Parameters
   # obs. used (total)      627  
   data-arc span      10703 days (29.30 yr)  
   first obs. used      1991-10-05  
   last obs. used      2021-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52399  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:30:37  

Additional Information
 Earth MOID = 1.00807 au 
 Jupiter MOID = 2.37625 au 
 T_jup = 3.413 
[ 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 16.0   n/a MPO417516  

102128 (1999 RC178)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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