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213531 (2002 JN18)
Classification: Main-belt Asteroid          SPK-ID: 2213531
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304017487410518 6.5299e-08  
a 2.478401526244784 1.3682e-08 au
q 2.155213633139972 1.686e-07 au
i 10.30369812266218 5.3195e-06 deg
node 79.23350666199103 3.2099e-05 deg
peri 129.444555747619 4.2545e-05 deg
M 288.951994060779 2.9311e-05 deg
tp 2459481.758283038762
(2021-Sep-24.25828304)
0.00011722 TDB
period 1425.134745943083
3.90
1.1801e-05
3.231e-08
d
yr
n .2526076927285706 2.0918e-09 deg/d
Q 2.801589419349595 1.5466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      10338 days (28.30 yr)  
   first obs. used      1992-11-19  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:04  

Additional Information
 Earth MOID = 1.16332 au 
 Jupiter MOID = 2.20424 au 
 T_jup = 3.446 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457876.5 (2017-May-03.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1309866330833326 6.5326e-08  
q 2.153138158964751 1.6866e-07 au
tp 2458058.107773369541
(2017-Oct-31.60777337)
0.00011132 TDB
node 79.24961981168251 3.2116e-05 deg
peri 129.7518448240883 4.252e-05 deg
i 10.30243704105234 5.3179e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      10338 days (28.30 yr)  
   first obs. used      1992-11-19  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:43:04  

Additional Information
 Jupiter MOID = 2.20424 au 
 T_jup = 3.446 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.267548194708801E-15 -1.099874917348047E-14 -2.995273842019371E-12 5.574030790129881E-14 -5.345976631407998E-13 -9.45609993014503E-15
q -1.099874917348047E-14 2.844556689966552E-14 7.993931193259972E-12 -1.467340439031412E-13 1.447254281266849E-12 2.53200509517357E-14
tp -2.995273842019371E-12 7.993931193259972E-12 1.239139968848614E-8 -1.293162191414565E-10 3.115855522143635E-9 3.343764099825543E-11
node 5.574030790129881E-14 -1.467340439031412E-13 -1.293162191414565E-10 1.031438216105294E-9 -1.044172174083863E-9 5.126938059459863E-11
peri -5.345976631407998E-13 1.447254281266849E-12 3.115855522143635E-9 -1.044172174083863E-9 1.807978342304336E-9 -4.260340758013197E-11
i -9.45609993014503E-15 2.53200509517357E-14 3.343764099825543E-11 5.126938059459863E-11 -4.260340758013197E-11 2.828013532020526E-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 16.50   n/a MPCxxxxx  
diameter diameter 2.112 km 0.506 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.131   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213531 (2002 JN18)          Discovered 2002-May-07 by NEAT at Palomar
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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