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101504 (1998 XK13)
Classification: Main-belt Asteroid          SPK-ID: 2101504
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2036170564706544 3.2615e-08  
a 2.378111917732182 6.4679e-09 au
q 1.893887769085772 7.7001e-08 au
i 3.846203906052842 3.7611e-06 deg
node 74.64115456140111 4.8198e-05 deg
peri 306.9680810011811 4.9081e-05 deg
M 29.61112433095972 7.8497e-06 deg
tp 2459090.320890502448
(2020-Aug-28.82089050)		 2.9169e-05 TDB
period 1339.512778231385
3.67		 5.4647e-06
1.496e-08		 d
yr
n .2687544350829733 1.0964e-09 deg/d
Q 2.862336066378592 7.7848e-09 au
   Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      8126 days (22.25 yr)  
   first obs. used      1998-10-20  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48455  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:28:51  

Additional Information
 Earth MOID = .898755 au 
 Jupiter MOID = 2.59829 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457791.5 (2017-Feb-07.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2053794377184202 3.2732e-08  
q 1.889359772698212 7.7412e-08 au
tp 2457750.476040697359
(2016-Dec-27.97604070)		 2.8715e-05 TDB
node 74.64998228008426 4.819e-05 deg
peri 306.8983785372043 4.9049e-05 deg
i 3.847889049570754 3.7632e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      8126 days (22.25 yr)  
   first obs. used      1998-10-20  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48455  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:28:51  

Additional Information
 Jupiter MOID = 2.59829 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.071372962948175E-15 -2.52833782942672E-15 1.704026568283233E-13 -8.061266003230079E-15 4.671116872763684E-14 -1.25572547484771E-15
q -2.52833782942672E-15 5.992580446913339E-15 -4.218347104243065E-13 1.852592402978573E-14 -1.155388536664165E-13 2.966155763772338E-15
tp 1.704026568283233E-13 -4.218347104243065E-13 8.24525957639717E-10 -8.714891915236112E-12 2.703909949153398E-10 2.896178676641421E-15
node -8.061266003230079E-15 1.852592402978573E-14 -8.714891915236112E-12 2.322288885209683E-9 -2.319285787687063E-9 -4.067945441164694E-11
peri 4.671116872763684E-14 -1.155388536664165E-13 2.703909949153398E-10 -2.319285787687063E-9 2.405830965883525E-9 4.063323411855682E-11
i -1.25572547484771E-15 2.966155763772338E-15 2.896178676641421E-15 -4.067945441164694E-11 4.063323411855682E-11 1.416139379431658E-11

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.31   n/a E2021B55  
diameter diameter 1.550 km 0.292 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.244   0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101504 (1998 XK13)          Discovered 1998-Dec-15 by ODAS at Caussols
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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