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150138 (1995 WR1)
Classification: Main-belt Asteroid          SPK-ID: 2150138
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2243612149790785 4.1289e-08  
a 2.315122663002381 8.5785e-09 au
q 1.795698929505567 9.2862e-08 au
i 24.71360513045524 4.9187e-06 deg
node 58.24851470260025 1.1549e-05 deg
peri 7.249725133673707 1.8854e-05 deg
M 34.34678384228559 1.3086e-05 deg
tp 2459077.743919719806
(2020-Aug-16.24391972)		 4.672e-05 TDB
period 1286.64707309402
3.52		 7.1513e-06
1.958e-08		 d
yr
n .2797970069090528 1.5551e-09 deg/d
Q 2.834546396499195 1.0503e-08 au
   Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      9196 days (25.18 yr)  
   first obs. used      1995-11-16  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54303  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:38:26  

Additional Information
 Earth MOID = .80945 au 
 Jupiter MOID = 2.53203 au 
 T_jup = 3.429 
[ 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 15.2   n/a MPO432953  
diameter diameter 5.751 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

150138 (1995 WR1)          Discovered 1995-Nov-16 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

Alternate Designations
 1995 WR1 = 2002 TW163 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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