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308628 (2005 XM49)
Classification: Main-belt Asteroid          SPK-ID: 2308628
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1926740564474492 9.0356e-08  
a 3.117045343988677 3.7838e-08 au
q 2.516471573431744 2.6888e-07 au
i 17.29527840340219 6.7328e-06 deg
node 75.68387536613007 2.9947e-05 deg
peri 102.791072037247 3.3761e-05 deg
M 157.4267064701761 1.744e-05 deg
tp 2458121.499715107415
(2018-Jan-02.99971511)
9.0987e-05 TDB
period 2010.07891009445
5.50
3.6601e-05
1.002e-07
d
yr
n .1790974464694444 3.2611e-09 deg/d
Q 3.71761911454561 4.5129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      6713 days (18.38 yr)  
   first obs. used      2001-02-13  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56093  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 18:18:59  

Additional Information
 Earth MOID = 1.58571 au 
 Jupiter MOID = 1.5978 au 
 T_jup = 3.120 
[ 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 15.1   n/a MPO450235  
rotation period rot_per 4.053 h n/a LCDB (Rev. 2019-August); 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.]

308628 (2005 XM49)          Discovered 2005-Dec-02 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 XM49 = 2001 CF35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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