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91179 (1998 RR26)
Classification: Main-belt Asteroid          SPK-ID: 2091179
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .107096539368053 6.3008e-08  
a 3.088131617081911 2.4904e-08 au
q 2.757403407779369 1.8508e-07 au
i 9.097766864421725 6.786e-06 deg
node 356.9005272880748 2.6992e-05 deg
peri 338.9696010462554 3.5868e-05 deg
M 9.486420106173979 2.2215e-05 deg
tp 2458948.267359360260
(2020-Apr-08.76735936)
0.00012231 TDB
period 1982.175617340466
5.43
2.3977e-05
6.565e-08
d
yr
n .1816186198895035 2.1969e-09 deg/d
Q 3.418859826384453 2.7571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1998-08-30  
   last obs. used      2020-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:40:52  

Additional Information
 Earth MOID = 1.75066 au 
 Jupiter MOID = 1.98028 au 
 T_jup = 3.198 
[ 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 14.7   n/a MPO410615  

91179 (1998 RR26)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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