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85807 (1998 WR10)
Classification: Jupiter Trojan          SPK-ID: 2085807
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0879675524512492 6.5389e-08  
a 5.18199372714411 1.2437e-07 au
q 4.726146422149516 4.06e-07 au
i 26.47936388635178 6.4318e-06 deg
node 237.8440420824747 1.7428e-05 deg
peri 205.2028575595769 6.0996e-05 deg
M 277.0311050974727 6.4835e-05 deg
tp 2459993.516708693222
(2023-Feb-18.01670869)
0.00079808 TDB
period 4308.675143251437
11.80
0.00015512
4.247e-07
d
yr
n .08355236540955251 3.008e-09 deg/d
Q 5.637841032138703 1.3532e-07 au
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      7937 days (21.73 yr)  
   first obs. used      1998-11-11  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55194  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:57:18  

Additional Information
 Earth MOID = 3.75517 au 
 Jupiter MOID = .215011 au 
 T_jup = 2.784 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457279.5 (2015-Sep-14.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08779061533592321 6.4979e-08  
q 4.723551056845813 4.0332e-07 au
tp 2455698.637560686274
(2011-May-17.13756069)
0.00071531 TDB
node 237.8569337900599 1.742e-05 deg
peri 205.929949038042 6.1414e-05 deg
i 26.49271998420985 6.4344e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      7937 days (21.73 yr)  
   first obs. used      1998-11-11  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55194  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:57:18  

Additional Information
 Jupiter MOID = .215011 au 
 T_jup = 2.784 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.222282414699857E-15 -2.53924331065534E-14 -1.600124031233035E-11 1.464710071479914E-15 -1.29748656802444E-12 -3.074243595937828E-15
q -2.53924331065534E-14 1.626656459408746E-13 1.222285704982014E-10 2.592425547141028E-15 1.025781368514948E-11 3.540255235398008E-14
tp -1.600124031233035E-11 1.222285704982014E-10 5.116690524877083E-7 -1.311115978458618E-10 4.228456153010347E-8 1.561038368323454E-10
node 1.464710071479914E-15 2.592425547141028E-15 -1.311115978458618E-10 3.034703815022471E-10 -2.811120635992956E-10 -2.190399844821572E-11
peri -1.29748656802444E-12 1.025781368514948E-11 4.228456153010347E-8 -2.811120635992956E-10 3.771658314855449E-9 3.285102531386856E-11
i -3.074243595937828E-15 3.540255235398008E-14 1.561038368323454E-10 -2.190399844821572E-11 3.285102531386856E-11 4.140213131453389E-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 11.9   n/a MPO253867  
diameter diameter 22.309 km 0.439 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.062   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

85807 (1998 WR10)          Discovered 1998-Nov-21 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 WR10 = 2004 HE16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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