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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1060221524719203 4.3533e-08  
a 2.550483358046767 1.5543e-08 au
q 2.280075622582838 1.0758e-07 au
i 14.09715761494044 4.4677e-06 deg
node 221.6888148227325 2.3588e-05 deg
peri 185.6230954670608 3.619e-05 deg
M 75.25700216285365 2.8043e-05 deg
tp 2458689.488404216191
(2019-Jul-24.98840422)
0.000116 TDB
period 1487.757567593305
4.07
1.36e-05
3.723e-08
d
yr
n .2419749076338827 2.212e-09 deg/d
Q 2.820891093510697 1.7191e-08 au
  Orbit Determination Parameters
   # obs. used (total)      693  
   data-arc span      7836 days (21.45 yr)  
   first obs. used      1998-08-19  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47899  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:36:14  

Additional Information
 Earth MOID = 1.28979 au 
 Jupiter MOID = 2.57049 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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