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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07136025361670714 4.8237e-08  
a 2.648041718279675 1.3539e-08 au
q 2.459076789675616 1.3114e-07 au
i 13.84952192036389 4.6161e-06 deg
node 7.563581277538323 1.8665e-05 deg
peri 84.67671406962691 4.4746e-05 deg
M 341.6983261638665 3.7739e-05 deg
tp 2459280.515472049443
(2021-Mar-07.01547205)		 0.0001649 TDB
period 1573.930898108767
4.31		 1.2071e-05
3.305e-08		 d
yr
n .2287266870690292 1.7541e-09 deg/d
Q 2.837006646883733 1.4505e-08 au
   Orbit Determination Parameters
   # obs. used (total)      891  
   data-arc span      8191 days (22.43 yr)  
   first obs. used      1998-09-13  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51423  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:11:37  

Additional Information
 Earth MOID = 1.52081 au 
 Jupiter MOID = 2.30174 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 15.12   n/a MPCxxxxx  

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

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