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65907 (1998 EX11)
Classification: Main-belt Asteroid          SPK-ID: 2065907
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .148077399163683 3.2679e-08  
a 2.355049136049695 6.9521e-09 au
q 2.006319585080778 7.7875e-08 au
i 7.507077901553274 3.0434e-06 deg
node 131.6408604604746 3.3029e-05 deg
peri 129.0250572310309 3.5542e-05 deg
M 338.9886660727423 1.2781e-05 deg
tp 2459077.545896002610
(2020-Aug-16.04589600)
4.6848e-05 TDB
period 1320.074330214579
3.61
5.8453e-06
1.6e-08
d
yr
n .2727119161096647 1.2076e-09 deg/d
Q 2.703778687018613 7.9815e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1097  
   data-arc span      10633 days (29.11 yr)  
   first obs. used      1991-05-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53704  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:10:37  

Additional Information
 Earth MOID = 1.0005 au 
 Jupiter MOID = 2.38733 au 
 T_jup = 3.529 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457231.5 (2015-Jul-28.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1485241494960622 3.2673e-08  
q 2.005232969285314 7.7932e-08 au
tp 2457756.190022926892
(2017-Jan-02.69002293)
4.7258e-05 TDB
node 131.6711748302494 3.3012e-05 deg
peri 128.8044939681495 3.5502e-05 deg
i 7.508822973878879 3.0443e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1097  
   data-arc span      10633 days (29.11 yr)  
   first obs. used      1991-05-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53704  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:10:37  

Additional Information
 Jupiter MOID = 2.38733 au 
 T_jup = 3.529 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.067492710457394E-15 -2.538999276965033E-15 -5.160545908027328E-13 -2.903774790698027E-15 -1.221270867829137E-13 -3.63504303588902E-15
q -2.538999276965033E-15 6.073458844709291E-15 1.171578198321238E-12 7.439182885505086E-15 2.713706963748178E-13 8.711919672715281E-15
tp -5.160545908027328E-13 1.171578198321238E-12 2.233361968606213E-9 5.23840214369476E-12 6.377005390382377E-10 4.359673984424019E-12
node -2.903774790698027E-15 7.439182885505086E-15 5.23840214369476E-12 1.089783870949559E-9 -1.078944578917501E-9 1.316831484365861E-11
peri -1.221270867829137E-13 2.713706963748178E-13 6.377005390382377E-10 -1.078944578917501E-9 1.260379091919893E-9 -1.187756305737274E-11
i -3.63504303588902E-15 8.711919672715281E-15 4.359673984424019E-12 1.316831484365861E-11 -1.187756305737274E-11 9.267638283395602E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO259755  
diameter diameter 4.817 km 0.227 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65907 (1998 EX11)          Discovered 1998-Mar-01 by Elst, E. W. at La Silla
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 EX11 = 2002 JX72 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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