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276400 (2002 XS45)
Classification: Mars-crossing Asteroid          SPK-ID: 2276400
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2797432414879844 6.2083e-08  
a 2.193315772542924 4.1841e-09 au
q 1.579750508725044 1.3618e-07 au
i 5.634049425553719 4.9599e-06 deg
node 44.29473744458006 3.708e-05 deg
peri 301.0003514683895 3.7874e-05 deg
M 259.8505269006594 6.7131e-06 deg
tp 2459530.562615984936
(2021-Nov-12.06261599)
2.2404e-05 TDB
period 1186.451990982659
3.25
3.395e-06
9.295e-09
d
yr
n .3034256781868064 8.6825e-10 deg/d
Q 2.806881036360803 5.3546e-09 au
  Orbit Determination Parameters
   # obs. used (total)      577  
   data-arc span      6374 days (17.45 yr)  
   first obs. used      2002-10-11  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48504  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:56:38  

Additional Information
 Earth MOID = .580835 au 
 Jupiter MOID = 2.6286 au 
 T_jup = 3.613 
[ 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 16.45   n/a E2021B55  
rotation period rot_per 7.31665 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.]

276400 (2002 XS45)          Discovered 2002-Dec-10 by LINEAR at Socorro
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

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