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487772 (2015 RL208)
Classification: Main-belt Asteroid          SPK-ID: 2487772
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02246802023607584 7.6161e-08  
a 2.714252575950053 5.2542e-08 au
q 2.653268694147786 1.8733e-07 au
i 1.671085484432064 7.9701e-06 deg
node 72.78585355079449 0.00026687 deg
peri 66.24723732654269 0.00035837 deg
M 256.1356871066413 0.00024421 deg
tp 2459471.735138034445
(2021-Sep-14.23513803)
0.0011159 TDB
period 1633.329533182208
4.47
4.7426e-05
1.298e-07
d
yr
n .2204086760732316 6.3999e-09 deg/d
Q 2.77523645775232 5.3722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      5664 days (15.51 yr)  
   first obs. used      2004-03-23  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6989  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:48:11  

Additional Information
 Earth MOID = 1.66632 au 
 Jupiter MOID = 2.2005 au 
 T_jup = 3.361 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457150.5 (2015-May-08.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02044513648744293 7.6258e-08  
q 2.659808392783991 1.8709e-07 au
tp 2457836.569415287528
(2017-Mar-24.06941529)
0.0012003 TDB
node 72.7869992768177 0.00026686 deg
peri 65.97057815300113 0.00037502 deg
i 1.671881019437473 7.9672e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      5664 days (15.51 yr)  
   first obs. used      2004-03-23  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6989  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:48:11  

Additional Information
 Jupiter MOID = 2.2005 au 
 T_jup = 3.361 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.815261927425187E-15 -1.384287128271002E-14 3.87887784280096E-11 5.819730517425315E-14 8.550190084360135E-12 5.943640378228683E-16
q -1.384287128271002E-14 3.500243233361362E-14 -7.111360822289881E-11 -1.295654794443454E-13 -1.584364073710423E-11 -3.869576222433667E-17
tp 3.87887784280096E-11 -7.111360822289881E-11 1.440700366656226E-6 1.02247209331505E-9 3.163130187597653E-7 3.604664645274353E-11
node 5.819730517425315E-14 -1.295654794443454E-13 1.02247209331505E-9 7.121177416090809E-8 -7.095435996266173E-8 -5.627525941449275E-10
peri 8.550190084360135E-12 -1.584364073710423E-11 3.163130187597653E-7 -7.095435996266173E-8 1.406382074058203E-7 5.703755593536276E-10
i 5.943640378228683E-16 -3.869576222433667E-17 3.604664645274353E-11 -5.627525941449275E-10 5.703755593536276E-10 6.347618907764149E-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 17.5   n/a MPO450510  

487772 (2015 RL208)          Discovered 2011-Oct-26 by Pan-STARRS 1 at Haleakala
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 RL208 = 2011 WU38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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