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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1022933238504327 3.831e-08  
a 2.686063824574777 1.0404e-08 au
q 2.411297427884617 1.0079e-07 au
i 3.300578428636187 3.9211e-06 deg
node 212.6740819951037 5.8381e-05 deg
peri 177.5349032552628 6.0849e-05 deg
M 153.9493492395137 1.7125e-05 deg
tp 2458708.880355679270
(2019-Aug-13.38035568)
7.5468e-05 TDB
period 1607.951402057156
4.40
9.3419e-06
2.558e-08
d
yr
n .2238873634734412 1.3007e-09 deg/d
Q 2.960830221264937 1.1468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1223  
   data-arc span      8674 days (23.75 yr)  
   first obs. used      1997-09-07  
   last obs. used      2021-06-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54776  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:26:25  

Additional Information
 Earth MOID = 1.41582 au 
 Jupiter MOID = 2.45138 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 15.06   n/a MPO637173  
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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