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46866 (1998 QW87)
Classification: Main-belt Asteroid          SPK-ID: 2046866
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1058281281293277 6.4573e-08  
a 2.550202008110067 1.8398e-08 au
q 2.280318903240126 1.691e-07 au
i 14.09868967628423 4.9918e-06 deg
node 221.6946900333362 2.632e-05 deg
peri 185.6961313255817 4.9967e-05 deg
M 338.4041149319857 4.8449e-05 deg
tp 2458689.733681032802
(2019-Jul-25.23368103)
0.00020059 TDB
period 1487.511397223905
4.07
1.6097e-05
4.407e-08
d
yr
n .242014952404302 2.619e-09 deg/d
Q 2.820085112980008 2.0345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      537  
   data-arc span      7382 days (20.21 yr)  
   first obs. used      1998-08-19  
   last obs. used      2018-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52124  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:39:39  

Additional Information
 Earth MOID = 1.28953 au 
 Jupiter MOID = 2.56993 au 
 T_jup = 3.391 
[ 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 14.9   n/a MPO445556  
diameter diameter 2.604 km 0.470 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.343   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46866 (1998 QW87)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QW87 = 2000 CN108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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