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173204 (1998 RN66)
Classification: Main-belt Asteroid          SPK-ID: 2173204
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1864446517765475 7.6175e-08  
a 2.638309822674643 1.7039e-08 au
q 2.146411066507424 2.0268e-07 au
i 13.32066074803019 8.5404e-06 deg
node 352.906585735384 2.1493e-05 deg
peri 5.083181473920944 2.7037e-05 deg
M 27.67590701203897 1.5482e-05 deg
tp 2458880.166518915322
(2020-Jan-31.66651892)
6.6867e-05 TDB
period 1565.262275655139
4.29
1.5163e-05
4.151e-08
d
yr
n .2299934046831368 2.228e-09 deg/d
Q 3.130208578841861 2.0215e-08 au
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      7667 days (20.99 yr)  
   first obs. used      1998-08-31  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5445  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:46:01  

Additional Information
 Earth MOID = 1.14259 au 
 Jupiter MOID = 2.31727 au 
 T_jup = 3.334 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456903.5 (2014-Sep-03.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1887788385459648 7.6294e-08  
q 2.13944414484039 2.0356e-07 au
tp 2457314.701454329824
(2015-Oct-19.20145433)
6.0921e-05 TDB
node 353.0363183338429 2.1461e-05 deg
peri 4.969935111013566 2.6811e-05 deg
i 13.33962528932871 8.5473e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      7667 days (20.99 yr)  
   first obs. used      1998-08-31  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5445  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:46:01  

Additional Information
 Jupiter MOID = 2.31727 au 
 T_jup = 3.334 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.820729373218786E-15 -1.549430783628525E-14 -1.909674204696758E-12 2.302716262331129E-14 -5.373424750080985E-13 -1.979909450633745E-14
q -1.549430783628525E-14 4.143467666472282E-14 5.188915189427046E-12 -6.448798626874626E-14 1.44366061335779E-12 5.499417644789831E-14
tp -1.909674204696758E-12 5.188915189427046E-12 3.711328782434185E-9 -1.296186036966997E-11 9.934328051416712E-10 5.877730278724827E-12
node 2.302716262331129E-14 -6.448798626874626E-14 -1.296186036966997E-11 4.605915061604468E-10 -4.499292548793161E-10 -4.132098115366206E-11
peri -5.373424750080985E-13 1.44366061335779E-12 9.934328051416712E-10 -4.499292548793161E-10 7.188503043531265E-10 4.157346531915638E-11
i -1.979909450633745E-14 5.499417644789831E-14 5.877730278724827E-12 -4.132098115366206E-11 4.157346531915638E-11 7.305571068759241E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO433112  

173204 (1998 RN66)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 1998 RN66 = 2002 QM43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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