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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 ]

[ hide orbit diagram ]

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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07151644204021426 4.8211e-08  
a 2.648476188119361 1.3574e-08 au
q 2.459066594316835 1.311e-07 au
i 13.84948815982606 4.6161e-06 deg
node 7.558175969096199 1.8664e-05 deg
peri 84.63859004980802 4.4679e-05 deg
M 26.55939394425828 3.7613e-05 deg
tp 2459280.352946775859
(2021-Mar-06.85294678)		 0.00016462 TDB
period 1574.318271284574
4.31		 1.2103e-05
3.314e-08		 d
yr
n .2286704071002466 1.758e-09 deg/d
Q 2.837885781921887 1.4545e-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-Jul-08 22:54:03  

Additional Information
 Earth MOID = 1.52107 au 
 Jupiter MOID = 2.30078 au 
 T_jup = 3.347 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457451.5 (2016-Mar-04.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06992662113261089 4.7446e-08  
q 2.463208223575934 1.2869e-07 au
tp 2457701.166635010695
(2016-Nov-08.66663501)		 0.00017347 TDB
node 7.660523456714635 1.8629e-05 deg
peri 83.44979202049527 4.6112e-05 deg
i 13.86471654007275 4.6193e-06 deg
   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-Jul-08 22:54:03  

Additional Information
 Jupiter MOID = 2.30078 au 
 T_jup = 3.347 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.251153772496092E-15 -6.077730200129033E-15 3.399763786332192E-12 1.454873223415541E-14 8.923696552076617E-13 -8.632713448911527E-15
q -6.077730200129033E-15 1.656037448565889E-14 -9.433823257012275E-12 -4.14019249322536E-14 -2.477130142304988E-12 2.42435475779918E-14
tp 3.399763786332192E-12 -9.433823257012275E-12 3.009212046445606E-8 2.946996297399718E-11 7.334758286225418E-9 -9.116935984583245E-13
node 1.454873223415541E-14 -4.14019249322536E-14 2.946996297399718E-11 3.470255535057574E-10 -3.284479618910223E-10 -1.401916326501224E-11
peri 8.923696552076617E-13 -2.477130142304988E-12 7.334758286225418E-9 -3.284479618910223E-10 2.126354302822901E-9 1.29648992163287E-11
i -8.632713448911527E-15 2.42435475779918E-14 -9.116935984583245E-13 -1.401916326501224E-11 1.29648992163287E-11 2.133817955716304E-11

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

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

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