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85540 (1997 WP37)
Classification: Main-belt Asteroid          SPK-ID: 2085540
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1019881831374444 3.9396e-08  
a 2.686510605153194 1.1029e-08 au
q 2.412518269554144 1.0463e-07 au
i 3.300074114753935 4.3734e-06 deg
node 212.6916377916869 6.244e-05 deg
peri 177.564765487115 6.5449e-05 deg
M 65.28234390229137 1.8533e-05 deg
tp 2458708.841589889948
(2019-Aug-13.34158989)
8.2663e-05 TDB
period 1608.352601382827
4.40
9.9043e-06
2.712e-08
d
yr
n .2238315153595547 1.3784e-09 deg/d
Q 2.960502940752245 1.2154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1079  
   data-arc span      8182 days (22.40 yr)  
   first obs. used      1997-09-07  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5441  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:34:08  

Additional Information
 Earth MOID = 1.41776 au 
 Jupiter MOID = 2.4496 au 
 T_jup = 3.364 
[ 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 15.0   n/a MPO412682  
diameter diameter 2.278 km 0.614 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.283   0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85540 (1997 WP37)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 WP37 = 2001 ON67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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