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85681 (1998 RR25)
Classification: Main-belt Asteroid          SPK-ID: 2085681
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1235887385588429 4.9908e-08  
a 2.386154611572425 1.0098e-08 au
q 2.091252773121823 1.1646e-07 au
i 14.01580128881246 5.4599e-06 deg
node 349.2199146372844 1.3031e-05 deg
peri 190.7899657880247 1.8832e-05 deg
M 119.8740273366277 1.3664e-05 deg
tp 2458552.199840758274
(2019-Mar-09.69984076)
5.0677e-05 TDB
period 1346.313800518396
3.69
8.5459e-06
2.34e-08
d
yr
n .2673967984740129 1.6973e-09 deg/d
Q 2.681056450023028 1.1346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1181  
   data-arc span      8110 days (22.20 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53834  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:09  

Additional Information
 Earth MOID = 1.09697 au 
 Jupiter MOID = 2.2916 au 
 T_jup = 3.485 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457619.5 (2016-Aug-19.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1231964884166166 4.9917e-08  
q 2.091730363446534 1.163e-07 au
tp 2457204.903156456057
(2015-Jul-01.40315646)
5.0319e-05 TDB
node 349.2883251322061 1.3034e-05 deg
peri 190.423931112262 1.8846e-05 deg
i 14.0141609302229 5.4594e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1181  
   data-arc span      8110 days (22.20 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53834  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:09  

Additional Information
 Jupiter MOID = 2.2916 au 
 T_jup = 3.485 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.491756246622255E-15 -5.790506311877402E-15 -6.179847059365739E-13 9.489153174651552E-15 -1.444788735434671E-13 -9.394867558147247E-17
q -5.790506311877402E-15 1.352509887834243E-14 1.45832971601311E-12 -2.260447943997334E-14 3.479577842155075E-13 5.037762600579091E-16
tp -6.179847059365739E-13 1.45832971601311E-12 2.532027942572625E-9 -4.49654843977607E-12 6.890441397774554E-10 2.847738813012373E-12
node 9.489153174651552E-15 -2.260447943997334E-14 -4.49654843977607E-12 1.698912707014407E-10 -1.655239094945107E-10 -1.881792677785348E-12
peri -1.444788735434671E-13 3.479577842155075E-13 6.890441397774554E-10 -1.655239094945107E-10 3.551699262215413E-10 2.552804774974114E-12
i -9.394867558147247E-17 5.037762600579091E-16 2.847738813012373E-12 -1.881792677785348E-12 2.552804774974114E-12 2.980492234781414E-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 15.0   n/a MPO385350  

85681 (1998 RR25)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 RR25 = 2002 TW186 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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