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102899 (1999 XN11)
Classification: Main-belt Asteroid          SPK-ID: 2102899
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09293497602881362 3.7617e-08  
a 2.46859076636843 1.058e-08 au
q 2.239172342671029 9.3453e-08 au
i 7.683265249176878 3.828e-06 deg
node 24.74738243355115 3.5533e-05 deg
peri 350.115205075036 4.3718e-05 deg
M 187.8658590205861 2.6151e-05 deg
tp 2459877.886587146794
(2022-Oct-25.38658715)
0.00010388 TDB
period 1416.681025538158
3.88
9.1077e-06
2.494e-08
d
yr
n .2541150714313026 1.6337e-09 deg/d
Q 2.698009190065831 1.1563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1078  
   data-arc span      10753 days (29.44 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:09  

Additional Information
 Earth MOID = 1.23937 au 
 Jupiter MOID = 2.71429 au 
 T_jup = 3.467 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457210.5 (2015-Jul-07.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09210062256489306 3.8039e-08  
q 2.241352079893496 9.4557e-08 au
tp 2457039.659491368103
(2015-Jan-17.15949137)
0.0001016 TDB
node 24.78397879173714 3.555e-05 deg
peri 349.1464455000745 4.3813e-05 deg
i 7.682251391798772 3.8289e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1078  
   data-arc span      10753 days (29.44 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:09  

Additional Information
 Jupiter MOID = 2.71429 au 
 T_jup = 3.467 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.446980177800482E-15 -3.578350122159752E-15 -1.950897754011486E-12 -2.320704875617619E-14 -4.996283727642366E-13 5.572073412170362E-16
q -3.578350122159752E-15 8.94107732340508E-15 4.902084146628702E-12 5.753130777149562E-14 1.257062975611724E-12 -1.310124215121199E-15
tp -1.950897754011486E-12 4.902084146628702E-12 1.032202540127211E-8 7.824266937660657E-11 2.632256082992595E-9 -5.726503096868502E-12
node -2.320704875617619E-14 5.753130777149562E-14 7.824266937660657E-11 1.263835202974705E-9 -1.231777403626195E-9 -5.344372020425606E-11
peri -4.996283727642366E-13 1.257062975611724E-12 2.632256082992595E-9 -1.231777403626195E-9 1.91961260309613E-9 5.149154950711845E-11
i 5.572073412170362E-16 -1.310124215121199E-15 -5.726503096868502E-12 -5.344372020425606E-11 5.149154950711845E-11 1.466035151796298E-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 15.35   n/a E2021B55  
diameter diameter 2.423 km 0.442 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.81503 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.250   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102899 (1999 XN11)          Discovered 1999-Dec-05 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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