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118174 (1991 RO24)
Classification: Mars-crossing Asteroid          SPK-ID: 2118174
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3077085070475457 1.8047e-07  
a 2.319104615524676 1.7253e-08 AU
q 1.605496396594505 4.2617e-07 AU
i 9.578638287641954 1.4865e-05 deg
node 150.4366373198459 5.5116e-05 deg
peri 179.649700262275 6.0864e-05 deg
M 163.0009689624952 2.5115e-05 deg
tp 2456216.427683179578
(2012-Oct-15.92768318)
8.5177e-05 JED
period 1289.968000765271
3.53
1.4395e-05
3.941e-08
d
yr
n .2790766901089258 3.1144e-09 deg/d
Q 3.032712834454846 2.2563e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      8191 days (22.43 yr)  
   first obs. used      1991-08-08  
   last obs. used      2014-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63465  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 00:18:36  

Additional Information
 Earth MOID = .593465 AU 
 T_jup = 3.496 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2 mag n/a MPO280572  

118174 (1991 RO24)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar (675)
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

Alternate Designations
 1991 RO24 = 1998 PK 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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