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

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3083032790430781 5.6618e-08  
a 2.317917284121052 1.1249e-08 au
q 1.603295784875906 1.3024e-07 au
i 9.582606339181062 6.7675e-06 deg
node 150.3982197145612 3.3653e-05 deg
peri 179.5873394906257 3.5492e-05 deg
M 57.64068318592588 1.6447e-05 deg
tp 2458794.117938298163
(2019-Nov-06.61793830)
5.7672e-05 TDB
period 1288.977474000558
3.53
9.3833e-06
2.569e-08
d
yr
n .2792911491949348 2.0331e-09 deg/d
Q 3.032538783366199 1.4717e-08 au
  Orbit Determination Parameters
   # obs. used (total)      263  
   data-arc span      10136 days (27.75 yr)  
   first obs. used      1991-08-08  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64402  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:55:27  

Additional Information
 Earth MOID = .592437 au 
 Jupiter MOID = 2.34471 au 
 T_jup = 3.497 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO493674  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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