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27138 (1998 XU42)
Classification: Main-belt Asteroid          SPK-ID: 2027138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2031781824576081 2.9018e-08  
a 2.315985808294018 8.0189e-09 au
q 1.845428021167225 6.7411e-08 au
i 6.19367752556922 3.8278e-06 deg
node 335.6693102414811 2.9396e-05 deg
peri 78.04255510248564 3.1145e-05 deg
M 301.7578222083263 8.6387e-06 deg
tp 2458808.775110039698
(2019-Nov-21.27511004)
3.0638e-05 TDB
period 1287.366689523248
3.52
6.6861e-06
1.831e-08
d
yr
n .2796406050659266 1.4523e-09 deg/d
Q 2.786543595420812 9.6482e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1294  
   data-arc span      9217 days (25.23 yr)  
   first obs. used      1994-09-03  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49002  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:00:49  

Additional Information
 Earth MOID = .867824 au 
 Jupiter MOID = 2.60972 au 
 T_jup = 3.546 
[ 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 14.8   n/a MPO452549  
diameter diameter 3.538 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.204   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27138 (1998 XU42)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XU42 = 1994 RV26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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