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JPL Small-Body Database Browser
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85688 (1998 RN55)
Classification: Main-belt Asteroid          SPK-ID: 2085688
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .171170388216933 3.7425e-08  
a 2.212557296097811 9.432e-09 au
q 1.833833004772542 8.1387e-08 au
i 3.3693182310214 5.3117e-06 deg
node 249.7438134672069 6.9206e-05 deg
peri 98.26305258379146 7.12e-05 deg
M 101.9543154838972 1.8483e-05 deg
tp 2458260.057847159330
(2018-May-21.55784716)
6.0713e-05 TDB
period 1202.098944423772
3.29
7.6867e-06
2.105e-08
d
yr
n .2994761801180738 1.915e-09 deg/d
Q 2.591281587423081 1.1046e-08 au
  Orbit Determination Parameters
   # obs. used (total)      622  
   data-arc span      7471 days (20.45 yr)  
   first obs. used      1998-08-27  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57454  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:23:09  

Additional Information
 Earth MOID = .830066 au 
 Jupiter MOID = 2.8274 au 
 T_jup = 3.634 
[ 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 15.9   n/a MPO453287  

85688 (1998 RN55)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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