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215287 (2001 QW287)
Classification: Main-belt Asteroid          SPK-ID: 2215287
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09927839949885578 5.55e-08  
a 2.735088964760709 1.6712e-08 au
q 2.463553709852283 1.5612e-07 au
i 4.821716816256663 5.9221e-06 deg
node 212.107561219927 5.3677e-05 deg
peri 154.4752369478778 5.8352e-05 deg
M 36.93267654523463 2.1508e-05 deg
tp 2458831.002266780150
(2019-Dec-13.50226678)
9.8704e-05 TDB
period 1652.173350729412
4.52
1.5143e-05
4.146e-08
d
yr
n .2178948110021657 1.9971e-09 deg/d
Q 3.006624219669134 1.8371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      518  
   data-arc span      8033 days (21.99 yr)  
   first obs. used      1998-01-26  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51925  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:21:24  

Additional Information
 Earth MOID = 1.46336 au 
 Jupiter MOID = 2.46628 au 
 T_jup = 3.340 
[ 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 15.7   n/a MPO450015  
diameter diameter 3.919 km 0.269 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215287 (2001 QW287)          Discovered 2001-Aug-17 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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