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103173 (1999 XS233)
Classification: Mars-crossing Asteroid          SPK-ID: 2103173
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2830868761911753 3.4706e-08  
a 2.313941170320083 6.9852e-09 au
q 1.658894792724018 7.9891e-08 au
i 4.547514053782535 3.1186e-06 deg
node 137.8545805251827 5.9643e-05 deg
peri 196.7486918060131 6.0078e-05 deg
M 44.70957703320857 7.9257e-06 deg
tp 2459040.829399986414
(2020-Jul-10.32939999)
2.8395e-05 TDB
period 1285.662263416092
3.52
5.8216e-06
1.594e-08
d
yr
n .2800113297589178 1.2679e-09 deg/d
Q 2.968987547916147 8.9626e-09 au
  Orbit Determination Parameters
   # obs. used (total)      952  
   data-arc span      9847 days (26.96 yr)  
   first obs. used      1994-02-16  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49098  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:45:27  

Additional Information
 Earth MOID = .647593 au 
 Jupiter MOID = 2.41712 au 
 T_jup = 3.524 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457698.5 (2016-Nov-06.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2831110830829778 3.4719e-08  
q 1.658972283595384 7.9967e-08 au
tp 2457755.762104016569
(2017-Jan-02.26210402)
2.9843e-05 TDB
node 137.8775511281912 5.9674e-05 deg
peri 196.8984669442367 6.011e-05 deg
i 4.546322904222939 3.1179e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      952  
   data-arc span      9847 days (26.96 yr)  
   first obs. used      1994-02-16  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49098  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:45:27  

Additional Information
 Jupiter MOID = 2.41712 au 
 T_jup = 3.524 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.205431323980318E-15 -2.770925747069286E-15 5.287308781568448E-13 4.054272231686794E-14 9.257238779290162E-14 -3.435868929715284E-15
q -2.770925747069286E-15 6.394793935442469E-15 -1.275148913820064E-12 -9.488803841119762E-14 -2.299604710314832E-13 8.048738916626903E-15
tp 5.287308781568448E-13 -1.275148913820064E-12 8.905860136799301E-10 4.288475127492377E-11 2.428815196307281E-10 -3.092961069677338E-12
node 4.054272231686794E-14 -9.488803841119762E-14 4.288475127492377E-11 3.561016494497329E-9 -3.537234294572068E-9 6.512313038903995E-11
peri 9.257238779290162E-14 -2.299604710314832E-13 2.428815196307281E-10 -3.537234294572068E-9 3.61323898380198E-9 -6.58476023001104E-11
i -3.435868929715284E-15 8.048738916626903E-15 -3.092961069677338E-12 6.512313038903995E-11 -6.58476023001104E-11 9.721468627166347E-12

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 16.13   n/a E2021B55  
rotation period rot_per 13.094 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

103173 (1999 XS233)          Discovered 1999-Dec-04 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XS233 = 2002 LJ10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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