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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09293498826840244 3.9096e-08  
a 2.468590769068584 1.0727e-08 au
q 2.239172314905709 9.6667e-08 au
i 7.683266133326095 3.8797e-06 deg
node 24.74736572101284 3.7148e-05 deg
peri 350.1152116523056 4.5815e-05 deg
M 187.8658674856624 2.7241e-05 deg
tp 2459877.886554946206
(2022-Oct-25.38655495)
0.00010794 TDB
period 1416.681027862515
3.88
9.2344e-06
2.528e-08
d
yr
n .2541150710143745 1.6564e-09 deg/d
Q 2.69800922323146 1.1724e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1067  
   data-arc span      10477 days (28.68 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53522  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:51:59  

Additional Information
 Earth MOID = 1.23937 au 
 Jupiter MOID = 2.71429 au 
 T_jup = 3.467 
[ show covariance matrix ]

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

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