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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3083496642157982 1.6214e-07  
a 2.317941497376287 1.6964e-08 AU
q 1.603205014988444 3.8329e-07 AU
i 9.583125114460557 1.276e-05 deg
node 150.4377049621401 4.8568e-05 deg
peri 179.6784972761843 5.2171e-05 deg
M 218.7955404611209 2.2355e-05 deg
tp 2457506.089498668265
(2016-Apr-27.58949867)
8.4558e-05 JED
period 1288.997671284315
3.53
1.415e-05
3.874e-08
d
yr
n .2792867729864149 3.0659e-09 deg/d
Q 3.032677979764129 2.2194e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      8633 days (23.64 yr)  
   first obs. used      1991-08-08  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .63071  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 21:00:48  

Additional Information
 Earth MOID = .593003 AU 
 T_jup = 3.497 
[ 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 16.3 mag n/a MPO325297  

118174 (1991 RO24)          Discovered 1991-Sep-12 by Holt, H. E. at Palomar
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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