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24207 (1999 XJ49)
Classification: Main-belt Asteroid          SPK-ID: 2024207
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 .2700682971610442 2.8706e-08  
a 2.403687016873392 8.7271e-09 au
q 1.754527357318285 7.1362e-08 au
i 6.959069440350003 3.7791e-06 deg
node 51.05053736627048 3.6261e-05 deg
peri 219.5375635060012 3.7628e-05 deg
M 10.88343642597174 1.1337e-05 deg
tp 2459159.349146485654
(2020-Nov-05.84914649)
4.2807e-05 TDB
period 1361.179197942707
3.73
7.4131e-06
2.03e-08
d
yr
n .2644765660128407 1.4404e-09 deg/d
Q 3.052846676428499 1.1084e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1631  
   data-arc span      13580 days (37.18 yr)  
   first obs. used      1983-06-14  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47028  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:37:44  

Additional Information
 Earth MOID = .74354 au 
 Jupiter MOID = 2.07678 au 
 T_jup = 3.464 
[ 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 E2021B10  
rotation period rot_per 3.510 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.]

24207 (1999 XJ49)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XJ49 = 1983 LR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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