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49395 (1998 XW32)
Classification: Main-belt Asteroid          SPK-ID: 2049395
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2015352986975778 8.269e-08  
a 2.54410793464289 1.2144e-08 au
q 2.031380382115758 2.1437e-07 au
i 11.97378258935906 3.7015e-06 deg
node 279.2068908581413 2.6998e-05 deg
peri 93.40245651274067 2.8404e-05 deg
M 147.9144774964597 9.5123e-06 deg
tp 2458391.510354468157
(2018-Sep-30.01035447)
3.7499e-05 TDB
period 1482.182651097901
4.06
1.0612e-05
2.905e-08
d
yr
n .2428850450606315 1.7391e-09 deg/d
Q 3.056835487170023 1.4591e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1413  
   data-arc span      24306 days (66.55 yr)  
   first obs. used      1953-10-08  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:32:52  

Additional Information
 Earth MOID = 1.07372 au 
 Jupiter MOID = 2.58086 au 
 T_jup = 3.385 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO493207  
diameter diameter 3.578 km 0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.971 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 0.288   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49395 (1998 XW32)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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