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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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3083495775692979 1.8059e-07  
a 2.317941501517406 1.7304e-08 AU
q 1.60320521869417 4.2632e-07 AU
i 9.583134077616286 1.4868e-05 deg
node 150.4376733371141 5.5093e-05 deg
peri 179.6785431859679 6.0818e-05 deg
M 218.795526941093 2.5536e-05 deg
tp 2457506.089548432281
(2016-Apr-27.58954843)
9.5926e-05 JED
period 1288.997674738605
3.53
1.4434e-05
3.952e-08
d
yr
n .2792867722379749 3.1274e-09 deg/d
Q 3.032677784340642 2.264e-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 = .593004 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 16.2 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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