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JPL Small-Body Database Browser
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85687 (1998 RF55)
Classification: Main-belt Asteroid          SPK-ID: 2085687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264051056463733 4.3634e-08  
a 2.291780609670076 7.4998e-09 au
q 2.00208783958642 9.9117e-08 au
i 5.98600963259849 4.3826e-06 deg
node 331.278423098937 4.0522e-05 deg
peri 57.06264764279038 4.3855e-05 deg
M 314.838490250916 1.5326e-05 deg
tp 2458759.473208301567
(2019-Oct-02.97320830)
5.4008e-05 TDB
period 1267.237417582677
3.47
6.2205e-06
1.703e-08
d
yr
n .2840825207692488 1.3945e-09 deg/d
Q 2.581473379753732 8.4478e-09 au
  Orbit Determination Parameters
   # obs. used (total)      962  
   data-arc span      7717 days (21.13 yr)  
   first obs. used      1998-09-14  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49551  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:13:30  

Additional Information
 Earth MOID = 1.0126 au 
 Jupiter MOID = 2.86581 au 
 T_jup = 3.580 
[ 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 15.5   n/a MPO395766  

85687 (1998 RF55)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 RF55 = 2000 DN76 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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