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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1235887015776943 5.8879e-08  
a 2.386154615893089 1.0716e-08 au
q 2.09125286515124 1.3998e-07 au
i 14.015804319167 5.8491e-06 deg
node 349.2199301191304 1.6119e-05 deg
peri 190.789935460049 2.4412e-05 deg
M 119.8740378109458 1.6227e-05 deg
tp 2458552.199800369212
(2019-Mar-09.69980037)
6.0884e-05 TDB
period 1346.313804175097
3.69
9.0689e-06
2.483e-08
d
yr
n .2673967977477409 1.8012e-09 deg/d
Q 2.681056366634938 1.204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5562  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:36:55  

Additional Information
 Earth MOID = 1.09697 au 
 Jupiter MOID = 2.2916 au 
 T_jup = 3.485 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457037.5 (2015-Jan-15.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1236324518286651 5.8715e-08  
q 2.091157641598827 1.3944e-07 au
tp 2457204.997739326636
(2015-Jul-01.49773933)
6.23e-05 TDB
node 349.2922258820806 1.6126e-05 deg
peri 190.4457983094991 2.4479e-05 deg
i 14.01193368364781 5.8479e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1007  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5562  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:36:55  

Additional Information
 Jupiter MOID = 2.2916 au 
 T_jup = 3.485 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.44745039813421E-15 -8.169543263489902E-15 5.202693364700496E-13 1.419400403333988E-14 2.484545841138859E-13 -1.837745320062305E-15
q -8.169543263489902E-15 1.944451286439683E-14 -1.361884455545641E-12 -3.449400134251342E-14 -6.255984687406047E-13 4.530013479906952E-15
tp 5.202693364700496E-13 -1.361884455545641E-12 3.881267254795535E-9 3.823540970509733E-12 1.152443067014328E-9 3.464298677381271E-12
node 1.419400403333988E-14 -3.449400134251342E-14 3.823540970509733E-12 2.600532428320219E-10 -2.501589426709846E-10 1.675255286705856E-11
peri 2.484545841138859E-13 -6.255984687406047E-13 1.152443067014328E-9 -2.501589426709846E-10 5.992303513383379E-10 -1.539254902129873E-11
i -1.837745320062305E-15 4.530013479906952E-15 3.464298677381271E-12 1.675255286705856E-11 -1.539254902129873E-11 3.419809107467417E-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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