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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2035824579059935 3.3753e-08  
a 2.378003432582275 6.8871e-09 au
q 1.893883648868286 8.0174e-08 au
i 3.846260732118273 3.7767e-06 deg
node 74.64105072125471 5.5566e-05 deg
peri 306.9389273299282 5.6354e-05 deg
M 335.8775795487766 8.3827e-06 deg
tp 2459090.250220609516
(2020-Aug-28.75022061)		 3.1262e-05 TDB
period 1339.421120063717
3.67		 5.8188e-06
1.593e-08		 d
yr
n .2687728262660773 1.1676e-09 deg/d
Q 2.862123216296264 8.2892e-09 au
   Orbit Determination Parameters
   # obs. used (total)      708  
   data-arc span      8063 days (22.08 yr)  
   first obs. used      1998-10-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:20  

Additional Information
 Earth MOID = .90005 au 
 Jupiter MOID = 2.59738 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457586.5 (2016-Jul-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2053771517765782 3.3853e-08  
q 1.889308540096156 8.058e-08 au
tp 2457750.523501541191
(2016-Dec-28.02350154)		 3.0154e-05 TDB
node 74.65272189683274 5.556e-05 deg
peri 306.9152724508904 5.6326e-05 deg
i 3.84784848468618 3.7786e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      708  
   data-arc span      8063 days (22.08 yr)  
   first obs. used      1998-10-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:20  

Additional Information
 Jupiter MOID = 2.59738 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.14599309957881E-15 -2.721617168168924E-15 9.195195666642079E-14 -1.11945819392131E-14 3.421966613685063E-14 -1.246116187690675E-15
q -2.721617168168924E-15 6.493141088825602E-15 -2.188226512572429E-13 2.56498729552267E-14 -8.219990097261132E-14 2.951502131790477E-15
tp 9.195195666642079E-14 -2.188226512572429E-13 9.092861184492774E-10 -1.324519797025271E-11 2.919016784418917E-10 1.032347279066391E-13
node -1.11945819392131E-14 2.56498729552267E-14 -1.324519797025271E-11 3.086896843405322E-9 -3.083296838642316E-9 -3.954094445433355E-11
peri 3.421966613685063E-14 -8.219990097261132E-14 2.919016784418917E-10 -3.083296838642316E-9 3.172655718613498E-9 3.952314932609007E-11
i -1.246116187690675E-15 2.951502131790477E-15 1.032347279066391E-13 -3.954094445433355E-11 3.952314932609007E-11 1.427748430978387E-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 16.1   n/a MPO474890  
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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