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74174 (1998 RL11)
Classification: Main-belt Asteroid          SPK-ID: 2074174
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07119570859387364 4.9555e-08  
a 2.647482915625051 1.5055e-08 au
q 2.458993493456951 1.3331e-07 au
i 13.85044848579212 5.6308e-06 deg
node 7.566447894065235 2.0135e-05 deg
peri 84.76456132947803 4.951e-05 deg
M 295.8508829652357 4.3713e-05 deg
tp 2459280.873109667967
(2021-Mar-07.37310967)
0.00019129 TDB
period 1573.432716552727
4.31
1.3421e-05
3.674e-08
d
yr
n .2287991067001156 1.9516e-09 deg/d
Q 2.835972337793151 1.6127e-08 au
  Orbit Determination Parameters
   # obs. used (total)      743  
   data-arc span      8093 days (22.16 yr)  
   first obs. used      1998-09-13  
   last obs. used      2020-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53596  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:08:51  

Additional Information
 Earth MOID = 1.52112 au 
 Jupiter MOID = 2.30293 au 
 T_jup = 3.347 
[ 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 15.0   n/a MPO502605  

74174 (1998 RL11)          Discovered 1998-Sep-13 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RL11 = 2002 PX99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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