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JPL Small-Body Database Browser
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49425 (1998 XE80)
Classification: Main-belt Asteroid          SPK-ID: 2049425
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1710042445900602 3.8923e-08  
a 2.695913163764637 1.46e-08 au
q 2.234900569714665 1.0532e-07 au
i 11.01556140171283 4.8391e-06 deg
node 198.1885448775293 2.5735e-05 deg
peri 246.5182249009773 2.989e-05 deg
M 299.3686619325565 1.6194e-05 deg
tp 2459272.802687618103
(2021-Feb-27.30268762)
7.3425e-05 TDB
period 1616.803631044301
4.43
1.3134e-05
3.596e-08
d
yr
n .2226615484327397 1.8088e-09 deg/d
Q 3.156925757814607 1.7097e-08 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      8471 days (23.19 yr)  
   first obs. used      1996-06-22  
   last obs. used      2019-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5136  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:16:34  

Additional Information
 Earth MOID = 1.27651 au 
 Jupiter MOID = 2.20817 au 
 T_jup = 3.322 
[ 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 14.8   n/a MPO493207  
diameter diameter 6.104 km 0.282 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.274 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.]
geometric albedo albedo 0.047   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49425 (1998 XE80)          Discovered 1998-Dec-15 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1998 XE80 = 1997 MK7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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