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103142 (1999 XM207)
Classification: Main-belt Asteroid          SPK-ID: 2103142
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2029813077848895 4.2677e-08  
a 2.635043448943903 1.8572e-08 au
q 2.100178883607264 1.1686e-07 au
i 13.14595867434839 4.7739e-06 deg
node 62.5707741284249 2.0244e-05 deg
peri 258.6599896351661 2.3476e-05 deg
M 100.1967840783424 1.0632e-05 deg
tp 2458765.658105009207
(2019-Oct-09.15810501)
4.6125e-05 TDB
period 1562.356353416361
4.28
1.6518e-05
4.522e-08
d
yr
n .2304211834981168 2.4361e-09 deg/d
Q 3.169908014280542 2.2342e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1258  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1999-12-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46058  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:33:27  

Additional Information
 Earth MOID = 1.13237 au 
 Jupiter MOID = 2.25977 au 
 T_jup = 3.332 
[ 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 14.54   n/a E2021B55  
diameter diameter 6.958 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.69273 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 0.072   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

103142 (1999 XM207)          Discovered 1999-Dec-12 by LINEAR at Socorro
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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